77389112 has 16 divisors (see below), whose sum is σ = 151413840. Its totient is φ = 37012096.

The previous prime is 77389097. The next prime is 77389127. The reversal of 77389112 is 21198377.

It is an interprime number because it is at equal distance from previous prime (77389097) and next prime (77389127).

It is a super-2 number, since 2×77389112² = 11978149312297088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210113 + ... + 210480.

It is an arithmetic number, because the mean of its divisors is an integer number (9463365).

Almost surely, 2^77389112 is an apocalyptic number.

It is an amenable number.

77389112 is a deficient number, since it is larger than the sum of its proper divisors (74024728).

77389112 is a wasteful number, since it uses less digits than its factorization.

77389112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420622 (or 420618 counting only the distinct ones).

The product of its digits is 21168, while the sum is 38.

The square root of 77389112 is about 8797.1081612084. The cubic root of 77389112 is about 426.1475092920.

The spelling of 77389112 in words is "seventy-seven million, three hundred eighty-nine thousand, one hundred twelve".