76309813 has 8 divisors (see below), whose sum is σ = 77799680. Its totient is φ = 74833200.

The previous prime is 76309801. The next prime is 76309819. The reversal of 76309813 is 31890367.

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 76309813 - 2¹⁷ = 76178741 is a prime.

It is a super-3 number, since 3×76309813³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76309819) 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, 8731 + ... + 15127.

It is an arithmetic number, because the mean of its divisors is an integer number (9724960).

Almost surely, 2^76309813 is an apocalyptic number.

It is an amenable number.

76309813 is a deficient number, since it is larger than the sum of its proper divisors (1489867).

76309813 is a wasteful number, since it uses less digits than its factorization.

76309813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6627.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 76309813 is about 8735.5488093193. The cubic root of 76309813 is about 424.1571540529.

The spelling of 76309813 in words is "seventy-six million, three hundred nine thousand, eight hundred thirteen".