76649785 has 8 divisors (see below), whose sum is σ = 92232576. Its totient is φ = 61151280.

The previous prime is 76649773. The next prime is 76649789. The reversal of 76649785 is 58794667.

It is a happy number.

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

It is not a de Polignac number, because 76649785 - 2¹⁷ = 76518713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76649789) 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, 19051 + ... + 22720.

It is an arithmetic number, because the mean of its divisors is an integer number (11529072).

Almost surely, 2^76649785 is an apocalyptic number.

It is an amenable number.

76649785 is a deficient number, since it is larger than the sum of its proper divisors (15582791).

76649785 is a wasteful number, since it uses less digits than its factorization.

76649785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42143.

The product of its digits is 2540160, while the sum is 52.

The square root of 76649785 is about 8754.9862935358. The cubic root of 76649785 is about 424.7861161398.

The spelling of 76649785 in words is "seventy-six million, six hundred forty-nine thousand, seven hundred eighty-five".