787401396 has 36 divisors (see below), whose sum is σ = 1992874884. Its totient is φ = 262137600.

The previous prime is 787401383. The next prime is 787401421. The reversal of 787401396 is 693104787.

It can be written as a sum of positive squares in 2 ways, for example, as 119902500 + 667498896 = 10950^2 + 25836^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16236 + ... + 42876.

Almost surely, 2^787401396 is an apocalyptic number.

It is an amenable number.

787401396 is an abundant number, since it is smaller than the sum of its proper divisors (1205473488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

787401396 is a wasteful number, since it uses less digits than its factorization.

787401396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27472 (or 27467 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 787401396 is about 28060.6734773063. The cubic root of 787401396 is about 923.4188311428.

The spelling of 787401396 in words is "seven hundred eighty-seven million, four hundred one thousand, three hundred ninety-six".