71487074 has 8 divisors (see below), whose sum is σ = 113538348. Its totient is φ = 33640960.

The previous prime is 71487061. The next prime is 71487079. The reversal of 71487074 is 47078417.

It can be written as a sum of positive squares in 2 ways, for example, as 71487025 + 49 = 8455^2 + 7^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×71487074² = 10220803498162952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71487079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051247 + ... + 1051314.

Almost surely, 2^71487074 is an apocalyptic number.

71487074 is a deficient number, since it is larger than the sum of its proper divisors (42051274).

71487074 is a wasteful number, since it uses less digits than its factorization.

71487074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102580.

The product of its (nonzero) digits is 43904, while the sum is 38.

The square root of 71487074 is about 8455.0028976932. The cubic root of 71487074 is about 415.0265120722.

The spelling of 71487074 in words is "seventy-one million, four hundred eighty-seven thousand, seventy-four".