71746972 has 24 divisors (see below), whose sum is σ = 137193840. Its totient is φ = 32559360.

The previous prime is 71746967. The next prime is 71746973. The reversal of 71746972 is 27964717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71746973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42154 + ... + 43822.

It is an arithmetic number, because the mean of its divisors is an integer number (5716410).

Almost surely, 2^71746972 is an apocalyptic number.

It is an amenable number.

71746972 is a deficient number, since it is larger than the sum of its proper divisors (65446868).

71746972 is a wasteful number, since it uses less digits than its factorization.

71746972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661 (or 2659 counting only the distinct ones).

The product of its digits is 148176, while the sum is 43.

The square root of 71746972 is about 8470.3584339743. The cubic root of 71746972 is about 415.5288597952.

The spelling of 71746972 in words is "seventy-one million, seven hundred forty-six thousand, nine hundred seventy-two".