780896090 has 16 divisors (see below), whose sum is σ = 1513737288. Its totient is φ = 288330816.

The previous prime is 780896089. The next prime is 780896113. The reversal of 780896090 is 90698087.

It can be written as a sum of positive squares in 4 ways, for example, as 371602729 + 409293361 = 19277^2 + 20231^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3003317 + ... + 3003576.

Almost surely, 2^780896090 is an apocalyptic number.

780896090 is a deficient number, since it is larger than the sum of its proper divisors (732841198).

780896090 is a wasteful number, since it uses less digits than its factorization.

780896090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6006913.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 780896090 is about 27944.5180670557. The cubic root of 780896090 is about 920.8687799918.

The spelling of 780896090 in words is "seven hundred eighty million, eight hundred ninety-six thousand, ninety".