72992671 has 2 divisors, whose sum is σ = 72992672. Its totient is φ = 72992670.

The previous prime is 72992663. The next prime is 72992677. The reversal of 72992671 is 17629927.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72992671 - 2³ = 72992663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72992677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36496335 + 36496336.

It is an arithmetic number, because the mean of its divisors is an integer number (36496336).

Almost surely, 2^72992671 is an apocalyptic number.

72992671 is a deficient number, since it is larger than the sum of its proper divisors (1).

72992671 is an equidigital number, since it uses as much as digits as its factorization.

72992671 is an evil number, because the sum of its binary digits is even.

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

The square root of 72992671 is about 8543.5748372681. The cubic root of 72992671 is about 417.9199326965.

The spelling of 72992671 in words is "seventy-two million, nine hundred ninety-two thousand, six hundred seventy-one".