77103090 has 40 divisors (see below), whose sum is σ = 207323820. Its totient is φ = 20560608.

The previous prime is 77103049. The next prime is 77103113. The reversal of 77103090 is 9030177.

It can be written as a sum of positive squares in 2 ways, for example, as 73564929 + 3538161 = 8577^2 + 1881^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46785 + ... + 48404.

Almost surely, 2^77103090 is an apocalyptic number.

77103090 is an abundant number, since it is smaller than the sum of its proper divisors (130220730).

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

77103090 is a wasteful number, since it uses less digits than its factorization.

77103090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95208 (or 95199 counting only the distinct ones).

The product of its (nonzero) digits is 1323, while the sum is 27.

The square root of 77103090 is about 8780.8365205144. The cubic root of 77103090 is about 425.6218624233.

The spelling of 77103090 in words is "seventy-seven million, one hundred three thousand, ninety".