76347497 has 4 divisors (see below), whose sum is σ = 76904916. Its totient is φ = 75790080.

The previous prime is 76347487. The next prime is 76347503. The reversal of 76347497 is 79474367.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79474367 = 7 ⋅11353481.

It can be written as a sum of positive squares in 2 ways, for example, as 20830096 + 55517401 = 4564^2 + 7451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76347497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76347437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278504 + ... + 278777.

It is an arithmetic number, because the mean of its divisors is an integer number (19226229).

Almost surely, 2^76347497 is an apocalyptic number.

It is an amenable number.

76347497 is a deficient number, since it is larger than the sum of its proper divisors (557419).

76347497 is a wasteful number, since it uses less digits than its factorization.

76347497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557418.

The product of its digits is 889056, while the sum is 47.

The square root of 76347497 is about 8737.7054768400. The cubic root of 76347497 is about 424.2269629332.

The spelling of 76347497 in words is "seventy-six million, three hundred forty-seven thousand, four hundred ninety-seven".