76683649 has 16 divisors (see below), whose sum is σ = 90994176. Its totient is φ = 63259200.

The previous prime is 76683643. The next prime is 76683671. The reversal of 76683649 is 94638667.

It is a cyclic number.

It is not a de Polignac number, because 76683649 - 2⁷ = 76683521 is a prime.

It is a super-3 number, since 3×76683649³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (76683643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18159 + ... + 21979.

It is an arithmetic number, because the mean of its divisors is an integer number (5687136).

Almost surely, 2^76683649 is an apocalyptic number.

It is an amenable number.

76683649 is a deficient number, since it is larger than the sum of its proper divisors (14310527).

76683649 is a wasteful number, since it uses less digits than its factorization.

76683649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936.

The product of its digits is 1306368, while the sum is 49.

The square root of 76683649 is about 8756.9200635840. The cubic root of 76683649 is about 424.8486639957.

The spelling of 76683649 in words is "seventy-six million, six hundred eighty-three thousand, six hundred forty-nine".