74997081 has 24 divisors (see below), whose sum is σ = 115839360. Its totient is φ = 46590336.

The previous prime is 74997079. The next prime is 74997119. The reversal of 74997081 is 18079947.

It is not a de Polignac number, because 74997081 - 2¹ = 74997079 is a prime.

It is a super-2 number, since 2×74997081² = 11249124317041122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74997001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13380 + ... + 18138.

It is an arithmetic number, because the mean of its divisors is an integer number (4826640).

Almost surely, 2^74997081 is an apocalyptic number.

It is an amenable number.

74997081 is a deficient number, since it is larger than the sum of its proper divisors (40842279).

74997081 is a wasteful number, since it uses less digits than its factorization.

74997081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4885 (or 4882 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 74997081 is about 8660.0855076610. The cubic root of 74997081 is about 421.7108615133.

The spelling of 74997081 in words is "seventy-four million, nine hundred ninety-seven thousand, eighty-one".