77834290 has 16 divisors (see below), whose sum is σ = 140434560. Its totient is φ = 31059760.

The previous prime is 77834243. The next prime is 77834291. The reversal of 77834290 is 9243877.

It is not an unprimeable number, because it can be changed into a prime (77834291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4720 + ... + 13339.

It is an arithmetic number, because the mean of its divisors is an integer number (8777160).

Almost surely, 2^77834290 is an apocalyptic number.

77834290 is a deficient number, since it is larger than the sum of its proper divisors (62600270).

77834290 is a wasteful number, since it uses less digits than its factorization.

77834290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18497.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 77834290 is about 8822.3743969523. The cubic root of 77834290 is about 426.9630800256.

The spelling of 77834290 in words is "seventy-seven million, eight hundred thirty-four thousand, two hundred ninety".