76830397 has 16 divisors (see below), whose sum is σ = 89224704. Its totient is φ = 64800000.

The previous prime is 76830371. The next prime is 76830409. The reversal of 76830397 is 79303867.

It is a cyclic number.

It is not a de Polignac number, because 76830397 - 2¹⁵ = 76797629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76830317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191397 + ... + 191797.

It is an arithmetic number, because the mean of its divisors is an integer number (5576544).

Almost surely, 2^76830397 is an apocalyptic number.

It is an amenable number.

76830397 is a deficient number, since it is larger than the sum of its proper divisors (12394307).

76830397 is a wasteful number, since it uses less digits than its factorization.

76830397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 76830397 is about 8765.2950321139. The cubic root of 76830397 is about 425.1194994992.

The spelling of 76830397 in words is "seventy-six million, eight hundred thirty thousand, three hundred ninety-seven".