787004881 has 16 divisors (see below), whose sum is σ = 869673168. Its totient is φ = 707558400.

The previous prime is 787004879. The next prime is 787004887. The reversal of 787004881 is 188400787.

It can be written as a sum of positive squares in 8 ways, for example, as 74114881 + 712890000 = 8609^2 + 26700^2 .

It is a cyclic number.

It is not a de Polignac number, because 787004881 - 2¹ = 787004879 is a prime.

It is a super-2 number, since 2×787004881² = 1238753365435648322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (787004887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530661 + ... + 532141.

It is an arithmetic number, because the mean of its divisors is an integer number (54354573).

Almost surely, 2^787004881 is an apocalyptic number.

It is an amenable number.

787004881 is a deficient number, since it is larger than the sum of its proper divisors (82668287).

787004881 is a wasteful number, since it uses less digits than its factorization.

787004881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532.

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 787004881 is about 28053.6072725060. The cubic root of 787004881 is about 923.2638018282.

The spelling of 787004881 in words is "seven hundred eighty-seven million, four thousand, eight hundred eighty-one".