74649765 has 32 divisors (see below), whose sum is σ = 126996480. Its totient is φ = 37336896.

The previous prime is 74649761. The next prime is 74649769. The reversal of 74649765 is 56794647.

It is an interprime number because it is at equal distance from previous prime (74649761) and next prime (74649769).

It is not a de Polignac number, because 74649765 - 2² = 74649761 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74649761) 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 31 ways as a sum of consecutive naturals, for example, 28084 + ... + 30626.

It is an arithmetic number, because the mean of its divisors is an integer number (3968640).

Almost surely, 2^74649765 is an apocalyptic number.

It is an amenable number.

74649765 is a deficient number, since it is larger than the sum of its proper divisors (52346715).

74649765 is a wasteful number, since it uses less digits than its factorization.

74649765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673.

The product of its digits is 1270080, while the sum is 48.

The square root of 74649765 is about 8640.0095486058. The cubic root of 74649765 is about 421.0588645281.

The spelling of 74649765 in words is "seventy-four million, six hundred forty-nine thousand, seven hundred sixty-five".