76491947 has 8 divisors (see below), whose sum is σ = 87507456. Its totient is φ = 65498472.

The previous prime is 76491941. The next prime is 76491971. The reversal of 76491947 is 74919467.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76491947 - 2¹⁰ = 76490923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76491941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2768 + ... + 12674.

It is an arithmetic number, because the mean of its divisors is an integer number (10938432).

Almost surely, 2^76491947 is an apocalyptic number.

76491947 is a deficient number, since it is larger than the sum of its proper divisors (11015509).

76491947 is a wasteful number, since it uses less digits than its factorization.

76491947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11017.

The product of its digits is 381024, while the sum is 47.

The square root of 76491947 is about 8745.9674707833. The cubic root of 76491947 is about 424.4943411736.

The spelling of 76491947 in words is "seventy-six million, four hundred ninety-one thousand, nine hundred forty-seven".