76385021 has 8 divisors (see below), whose sum is σ = 77625600. Its totient is φ = 75151440.

The previous prime is 76385017. The next prime is 76385027. The reversal of 76385021 is 12058367.

It is a happy number.

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 76385021 - 2² = 76385017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76385027) 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, 23015 + ... + 26123.

It is an arithmetic number, because the mean of its divisors is an integer number (9703200).

Almost surely, 2^76385021 is an apocalyptic number.

It is an amenable number.

76385021 is a deficient number, since it is larger than the sum of its proper divisors (1240579).

76385021 is a wasteful number, since it uses less digits than its factorization.

76385021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 76385021 is about 8739.8524587089. The cubic root of 76385021 is about 424.2964525953.

The spelling of 76385021 in words is "seventy-six million, three hundred eighty-five thousand, twenty-one".