71974960 has 20 divisors (see below), whose sum is σ = 167341968. Its totient is φ = 28789952.

The previous prime is 71974943. The next prime is 71974961. The reversal of 71974960 is 6947917.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (71974961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449764 + ... + 449923.

Almost surely, 2^71974960 is an apocalyptic number.

It is an amenable number.

71974960 is an abundant number, since it is smaller than the sum of its proper divisors (95367008).

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

71974960 is a wasteful number, since it uses less digits than its factorization.

71974960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899700 (or 899694 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 71974960 is about 8483.8057497800. The cubic root of 71974960 is about 415.9685318899.

The spelling of 71974960 in words is "seventy-one million, nine hundred seventy-four thousand, nine hundred sixty".