71972694 has 24 divisors (see below), whose sum is σ = 157402440. Its totient is φ = 23766048.

The previous prime is 71972653. The next prime is 71972707. The reversal of 71972694 is 49627917.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16759 + ... + 20610.

It is an arithmetic number, because the mean of its divisors is an integer number (6558435).

Almost surely, 2^71972694 is an apocalyptic number.

71972694 is an abundant number, since it is smaller than the sum of its proper divisors (85429746).

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

71972694 is a wasteful number, since it uses less digits than its factorization.

71972694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37484 (or 37481 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 71972694 is about 8483.6722001737. The cubic root of 71972694 is about 415.9641665079.

The spelling of 71972694 in words is "seventy-one million, nine hundred seventy-two thousand, six hundred ninety-four".