76689745 has 8 divisors (see below), whose sum is σ = 100393920. Its totient is φ = 55774320.

The previous prime is 76689733. The next prime is 76689761. The reversal of 76689745 is 54798667.

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 76689745 - 2⁵ = 76689713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76689692 and 76689701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697125 + ... + 697234.

It is an arithmetic number, because the mean of its divisors is an integer number (12549240).

Almost surely, 2^76689745 is an apocalyptic number.

It is an amenable number.

76689745 is a deficient number, since it is larger than the sum of its proper divisors (23704175).

76689745 is a wasteful number, since it uses less digits than its factorization.

76689745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394375.

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

The square root of 76689745 is about 8757.2681242497. The cubic root of 76689745 is about 424.8599215404.

The spelling of 76689745 in words is "seventy-six million, six hundred eighty-nine thousand, seven hundred forty-five".