76312621 has 8 divisors (see below), whose sum is σ = 95143104. Its totient is φ = 59464320.

The previous prime is 76312619. The next prime is 76312627. The reversal of 76312621 is 12621367.

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 76312621 - 2¹ = 76312619 is a prime.

It is a super-3 number, since 3×76312621³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 76312621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76312627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495460 + ... + 495613.

It is an arithmetic number, because the mean of its divisors is an integer number (11892888).

Almost surely, 2^76312621 is an apocalyptic number.

It is an amenable number.

76312621 is a deficient number, since it is larger than the sum of its proper divisors (18830483).

76312621 is a wasteful number, since it uses less digits than its factorization.

76312621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991091.

The product of its digits is 3024, while the sum is 28.

The square root of 76312621 is about 8735.7095304274. The cubic root of 76312621 is about 424.1623566109.

Adding to 76312621 its reverse (12621367), we get a palindrome (88933988).

The spelling of 76312621 in words is "seventy-six million, three hundred twelve thousand, six hundred twenty-one".