74697745 has 8 divisors (see below), whose sum is σ = 94910184. Its totient is φ = 56242944.

The previous prime is 74697719. The next prime is 74697757. The reversal of 74697745 is 54779647.

It can be written as a sum of positive squares in 4 ways, for example, as 16679056 + 58018689 = 4084^2 + 7617^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 74697745 - 2¹³ = 74689553 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439314 + ... + 439483.

It is an arithmetic number, because the mean of its divisors is an integer number (11863773).

Almost surely, 2^74697745 is an apocalyptic number.

It is an amenable number.

74697745 is a deficient number, since it is larger than the sum of its proper divisors (20212439).

74697745 is a wasteful number, since it uses less digits than its factorization.

74697745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878819.

The product of its digits is 1481760, while the sum is 49.

The square root of 74697745 is about 8642.7857198938. The cubic root of 74697745 is about 421.1490549330.

The spelling of 74697745 in words is "seventy-four million, six hundred ninety-seven thousand, seven hundred forty-five".