74931745 has 8 divisors (see below), whose sum is σ = 102763584. Its totient is φ = 51381744.

The previous prime is 74931721. The next prime is 74931781. The reversal of 74931745 is 54713947.

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 74931745 - 2⁵ = 74931713 is a prime.

It is a super-2 number, since 2×74931745² = 11229532817490050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74931698 and 74931707.

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, 1070419 + ... + 1070488.

It is an arithmetic number, because the mean of its divisors is an integer number (12845448).

Almost surely, 2^74931745 is an apocalyptic number.

It is an amenable number.

74931745 is a deficient number, since it is larger than the sum of its proper divisors (27831839).

74931745 is a wasteful number, since it uses less digits than its factorization.

74931745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140919.

The product of its digits is 105840, while the sum is 40.

The square root of 74931745 is about 8656.3124365979. The cubic root of 74931745 is about 421.5883638306.

The spelling of 74931745 in words is "seventy-four million, nine hundred thirty-one thousand, seven hundred forty-five".