77623340 has 24 divisors (see below), whose sum is σ = 163175040. Its totient is φ = 31017728.

The previous prime is 77623327. The next prime is 77623361. The reversal of 77623340 is 4332677.

77623340 is nontrivially palindromic in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 77623297 and 77623306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35396 + ... + 37524.

It is an arithmetic number, because the mean of its divisors is an integer number (6798960).

Almost surely, 2^77623340 is an apocalyptic number.

It is an amenable number.

77623340 is an abundant number, since it is smaller than the sum of its proper divisors (85551700).

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

77623340 is a wasteful number, since it uses less digits than its factorization.

77623340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961 (or 3959 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 77623340 is about 8810.4108871267. The cubic root of 77623340 is about 426.5770061708.

The spelling of 77623340 in words is "seventy-seven million, six hundred twenty-three thousand, three hundred forty".