76217649 has 8 divisors (see below), whose sum is σ = 101673600. Its totient is φ = 50786736.

The previous prime is 76217641. The next prime is 76217677. The reversal of 76217649 is 94671267.

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

It is not a de Polignac number, because 76217649 - 2³ = 76217641 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 76217649.

It is not an unprimeable number, because it can be changed into a prime (76217641) 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, 2664 + ... + 12630.

It is an arithmetic number, because the mean of its divisors is an integer number (12709200).

Almost surely, 2^76217649 is an apocalyptic number.

It is an amenable number.

76217649 is a deficient number, since it is larger than the sum of its proper divisors (25455951).

76217649 is a wasteful number, since it uses less digits than its factorization.

76217649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12519.

The product of its digits is 127008, while the sum is 42.

The square root of 76217649 is about 8730.2719888902. The cubic root of 76217649 is about 423.9863251345.

The spelling of 76217649 in words is "seventy-six million, two hundred seventeen thousand, six hundred forty-nine".