75497473 has 4 divisors (see below), whose sum is σ = 75686148. Its totient is φ = 75308800.

The previous prime is 75497467. The next prime is 75497479. The reversal of 75497473 is 37479457.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37479457 = 19 ⋅1972603.

It is an interprime number because it is at equal distance from previous prime (75497467) and next prime (75497479).

It can be written as a sum of positive squares in 2 ways, for example, as 74511424 + 986049 = 8632^2 + 993^2 .

It is a cyclic number.

It is not a de Polignac number, because 75497473 - 2⁹ = 75496961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75497479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93736 + ... + 94537.

It is an arithmetic number, because the mean of its divisors is an integer number (18921537).

It is a Proth number, since it is equal to 9 ⋅ 2²³ + 1 and 9 < 2²³.

Almost surely, 2^75497473 is an apocalyptic number.

It is an amenable number.

75497473 is a deficient number, since it is larger than the sum of its proper divisors (188675).

75497473 is a wasteful number, since it uses less digits than its factorization.

75497473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188674.

The product of its digits is 740880, while the sum is 46.

The square root of 75497473 is about 8688.9281847648. The cubic root of 75497473 is about 422.6466897246.

The spelling of 75497473 in words is "seventy-five million, four hundred ninety-seven thousand, four hundred seventy-three".