76820355 has 12 divisors (see below), whose sum is σ = 133155360. Its totient is φ = 40970832.

The previous prime is 76820351. The next prime is 76820371. The reversal of 76820355 is 55302867.

It is not a de Polignac number, because 76820355 - 2² = 76820351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76820351) 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, 853515 + ... + 853604.

It is an arithmetic number, because the mean of its divisors is an integer number (11096280).

Almost surely, 2^76820355 is an apocalyptic number.

76820355 is a deficient number, since it is larger than the sum of its proper divisors (56335005).

76820355 is a wasteful number, since it uses less digits than its factorization.

76820355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707130 (or 1707127 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 76820355 is about 8764.7221861277. The cubic root of 76820355 is about 425.1009771600.

The spelling of 76820355 in words is "seventy-six million, eight hundred twenty thousand, three hundred fifty-five".