72859651 has 2 divisors, whose sum is σ = 72859652. Its totient is φ = 72859650.

The previous prime is 72859649. The next prime is 72859693. The reversal of 72859651 is 15695827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72859651 - 2¹ = 72859649 is a prime.

Together with 72859649, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 72859598 and 72859607.

It is not a weakly prime, because it can be changed into another prime (72859601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36429825 + 36429826.

It is an arithmetic number, because the mean of its divisors is an integer number (36429826).

Almost surely, 2^72859651 is an apocalyptic number.

72859651 is a deficient number, since it is larger than the sum of its proper divisors (1).

72859651 is an equidigital number, since it uses as much as digits as its factorization.

72859651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 43.

The square root of 72859651 is about 8535.7864898321. The cubic root of 72859651 is about 417.6659094156.

The spelling of 72859651 in words is "seventy-two million, eight hundred fifty-nine thousand, six hundred fifty-one".