782779090 has 16 divisors (see below), whose sum is σ = 1430033472. Its totient is φ = 308438064.

The previous prime is 782779069. The next prime is 782779133. The reversal of 782779090 is 90977287.

It is a super-2 number, since 2×782779090² = 1225486207482456200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583494 + ... + 584833.

It is an arithmetic number, because the mean of its divisors is an integer number (89377092).

Almost surely, 2^782779090 is an apocalyptic number.

782779090 is a deficient number, since it is larger than the sum of its proper divisors (647254382).

782779090 is a wasteful number, since it uses less digits than its factorization.

782779090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168401.

The product of its (nonzero) digits is 444528, while the sum is 49.

The square root of 782779090 is about 27978.1895411408. The cubic root of 782779090 is about 921.6083594109.

The spelling of 782779090 in words is "seven hundred eighty-two million, seven hundred seventy-nine thousand, ninety".