74709972 has 24 divisors (see below), whose sum is σ = 193692800. Its totient is φ = 24903288.

The previous prime is 74709967. The next prime is 74709977. The reversal of 74709972 is 27990747.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (74709967) and next prime (74709977).

It is a super-3 number, since 3×74709972³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74709977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345772 + ... + 345987.

Almost surely, 2^74709972 is an apocalyptic number.

It is an amenable number.

74709972 is an abundant number, since it is smaller than the sum of its proper divisors (118982828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74709972 is a wasteful number, since it uses less digits than its factorization.

74709972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691772 (or 691764 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 74709972 is about 8643.4930439030. The cubic root of 74709972 is about 421.1720324609.

The spelling of 74709972 in words is "seventy-four million, seven hundred nine thousand, nine hundred seventy-two".