76381797 has 4 divisors (see below), whose sum is σ = 101842400. Its totient is φ = 50921196.

The previous prime is 76381793. The next prime is 76381831. The reversal of 76381797 is 79718367.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 76381797 - 2² = 76381793 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 (76381793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12730297 + ... + 12730302.

It is an arithmetic number, because the mean of its divisors is an integer number (25460600).

Almost surely, 2^76381797 is an apocalyptic number.

It is an amenable number.

76381797 is a deficient number, since it is larger than the sum of its proper divisors (25460603).

76381797 is a wasteful number, since it uses less digits than its factorization.

76381797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25460602.

The product of its digits is 444528, while the sum is 48.

The square root of 76381797 is about 8739.6680142898. The cubic root of 76381797 is about 424.2904830523.

It can be divided in two parts, 7638179 and 7, that added together give a triangular number (7638186 = T₃₉₀₈).

The spelling of 76381797 in words is "seventy-six million, three hundred eighty-one thousand, seven hundred ninety-seven".