72787001 has 8 divisors (see below), whose sum is σ = 84883200. Its totient is φ = 62388564.

The previous prime is 72786971. The next prime is 72787009. The reversal of 72787001 is 10078727.

It is not a de Polignac number, because 72787001 - 2¹⁸ = 72524857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72787009) 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, 105761 + ... + 106446.

It is an arithmetic number, because the mean of its divisors is an integer number (10610400).

Almost surely, 2^72787001 is an apocalyptic number.

It is an amenable number.

72787001 is a deficient number, since it is larger than the sum of its proper divisors (12096199).

72787001 is an equidigital number, since it uses as much as digits as its factorization.

72787001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212228 (or 212214 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 32.

The square root of 72787001 is about 8531.5298159240. The cubic root of 72787001 is about 417.5270418857.

The spelling of 72787001 in words is "seventy-two million, seven hundred eighty-seven thousand, one".