74425731 has 4 divisors (see below), whose sum is σ = 99234312. Its totient is φ = 49617152.

The previous prime is 74425697. The next prime is 74425739. The reversal of 74425731 is 13752447.

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

It is a cyclic number.

It is not a de Polignac number, because 74425731 - 2⁶ = 74425667 is a prime.

It is a super-2 number, since 2×74425731² = 11078378869768722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 74425692 and 74425701.

It is not an unprimeable number, because it can be changed into a prime (74425739) 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, 12404286 + ... + 12404291.

It is an arithmetic number, because the mean of its divisors is an integer number (24808578).

Almost surely, 2^74425731 is an apocalyptic number.

74425731 is a deficient number, since it is larger than the sum of its proper divisors (24808581).

74425731 is a wasteful number, since it uses less digits than its factorization.

74425731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24808580.

The product of its digits is 23520, while the sum is 33.

The square root of 74425731 is about 8627.0348903896. The cubic root of 74425731 is about 420.6372243238.

The spelling of 74425731 in words is "seventy-four million, four hundred twenty-five thousand, seven hundred thirty-one".