73452457 has 4 divisors (see below), whose sum is σ = 79102660. Its totient is φ = 67802256.

The previous prime is 73452439. The next prime is 73452487. The reversal of 73452457 is 75425437.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6031936 + 67420521 = 2456^2 + 8211^2 .

It is a cyclic number.

It is not a de Polignac number, because 73452457 - 2¹⁹ = 72928169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73452487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2825082 + ... + 2825107.

It is an arithmetic number, because the mean of its divisors is an integer number (19775665).

Almost surely, 2^73452457 is an apocalyptic number.

It is an amenable number.

73452457 is a deficient number, since it is larger than the sum of its proper divisors (5650203).

73452457 is a wasteful number, since it uses less digits than its factorization.

73452457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5650202.

The product of its digits is 117600, while the sum is 37.

The square root of 73452457 is about 8570.4408871423. The cubic root of 73452457 is about 418.7955990442.

The spelling of 73452457 in words is "seventy-three million, four hundred fifty-two thousand, four hundred fifty-seven".