72612871 has 2 divisors, whose sum is σ = 72612872. Its totient is φ = 72612870.

The previous prime is 72612847. The next prime is 72612887. The reversal of 72612871 is 17821627.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72612871 - 2⁹ = 72612359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72612671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36306435 + 36306436.

It is an arithmetic number, because the mean of its divisors is an integer number (36306436).

Almost surely, 2^72612871 is an apocalyptic number.

72612871 is a deficient number, since it is larger than the sum of its proper divisors (1).

72612871 is an equidigital number, since it uses as much as digits as its factorization.

72612871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 34.

The square root of 72612871 is about 8521.3186186177. The cubic root of 72612871 is about 417.1938228717.

The spelling of 72612871 in words is "seventy-two million, six hundred twelve thousand, eight hundred seventy-one".