76620065 has 16 divisors (see below), whose sum is σ = 99909120. Its totient is φ = 56194560.

The previous prime is 76620043. The next prime is 76620067. The reversal of 76620065 is 56002667.

It is not a de Polignac number, because 76620065 - 2¹⁶ = 76554529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76620067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10064 + ... + 15953.

It is an arithmetic number, because the mean of its divisors is an integer number (6244320).

Almost surely, 2^76620065 is an apocalyptic number.

It is an amenable number.

76620065 is a deficient number, since it is larger than the sum of its proper divisors (23289055).

76620065 is a wasteful number, since it uses less digits than its factorization.

76620065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26072.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 76620065 is about 8753.2888104986. The cubic root of 76620065 is about 424.7312071995.

The spelling of 76620065 in words is "seventy-six million, six hundred twenty thousand, sixty-five".