76874649 has 4 divisors (see below), whose sum is σ = 102499536. Its totient is φ = 51249764.

The previous prime is 76874647. The next prime is 76874659. The reversal of 76874649 is 94647867.

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 a cyclic number.

It is not a de Polignac number, because 76874649 - 2¹ = 76874647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76874647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12812439 + ... + 12812444.

It is an arithmetic number, because the mean of its divisors is an integer number (25624884).

Almost surely, 2^76874649 is an apocalyptic number.

It is an amenable number.

76874649 is a deficient number, since it is larger than the sum of its proper divisors (25624887).

76874649 is a wasteful number, since it uses less digits than its factorization.

76874649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25624886.

The product of its digits is 2032128, while the sum is 51.

The square root of 76874649 is about 8767.8189420175. The cubic root of 76874649 is about 425.2011025200.

The spelling of 76874649 in words is "seventy-six million, eight hundred seventy-four thousand, six hundred forty-nine".