77322070 has 24 divisors (see below), whose sum is σ = 159214032. Its totient is φ = 26485200.

The previous prime is 77322061. The next prime is 77322073. The reversal of 77322070 is 7022377.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77322073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73045 + ... + 74095.

It is an arithmetic number, because the mean of its divisors is an integer number (6633918).

Almost surely, 2^77322070 is an apocalyptic number.

77322070 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

77322070 is an abundant number, since it is smaller than the sum of its proper divisors (81891962).

77322070 is an equidigital number, since it uses as much as digits as its factorization.

77322070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 28.

The square root of 77322070 is about 8793.2968788731. The cubic root of 77322070 is about 426.0244168890.

The spelling of 77322070 in words is "seventy-seven million, three hundred twenty-two thousand, seventy".