76690397 has 8 divisors (see below), whose sum is σ = 87701376. Its totient is φ = 65693232.

The previous prime is 76690391. The next prime is 76690399. The reversal of 76690397 is 79309667.

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

It is a cyclic number.

It is not a de Polignac number, because 76690397 - 2¹⁰ = 76689373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76690391) 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, 15128 + ... + 19550.

It is an arithmetic number, because the mean of its divisors is an integer number (10962672).

Almost surely, 2^76690397 is an apocalyptic number.

It is an amenable number.

76690397 is a deficient number, since it is larger than the sum of its proper divisors (11010979).

76690397 is a wasteful number, since it uses less digits than its factorization.

76690397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6907.

The product of its (nonzero) digits is 428652, while the sum is 47.

The square root of 76690397 is about 8757.3053503918. The cubic root of 76690397 is about 424.8611255601.

The spelling of 76690397 in words is "seventy-six million, six hundred ninety thousand, three hundred ninety-seven".