77214830 has 32 divisors (see below), whose sum is σ = 173283840. Its totient is φ = 24066720.

The previous prime is 77214829. The next prime is 77214847. The reversal of 77214830 is 3841277.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 49370 + ... + 50909.

It is an arithmetic number, because the mean of its divisors is an integer number (5415120).

Almost surely, 2^77214830 is an apocalyptic number.

77214830 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

77214830 is an abundant number, since it is smaller than the sum of its proper divisors (96069010).

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

77214830 is a wasteful number, since it uses less digits than its factorization.

77214830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100304.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 77214830 is about 8787.1969364525. The cubic root of 77214830 is about 425.8273709650.

The spelling of 77214830 in words is "seventy-seven million, two hundred fourteen thousand, eight hundred thirty".