76307073 has 4 divisors (see below), whose sum is σ = 101742768. Its totient is φ = 50871380.

The previous prime is 76307057. The next prime is 76307081. The reversal of 76307073 is 37070367.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37070367 = 3 ⋅12356789.

It is a cyclic number.

It is not a de Polignac number, because 76307073 - 2⁴ = 76307057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76307003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12717843 + ... + 12717848.

It is an arithmetic number, because the mean of its divisors is an integer number (25435692).

Almost surely, 2^76307073 is an apocalyptic number.

It is an amenable number.

76307073 is a deficient number, since it is larger than the sum of its proper divisors (25435695).

76307073 is a wasteful number, since it uses less digits than its factorization.

76307073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25435694.

The product of its (nonzero) digits is 18522, while the sum is 33.

The square root of 76307073 is about 8735.3919774673. The cubic root of 76307073 is about 424.1520773597.

The spelling of 76307073 in words is "seventy-six million, three hundred seven thousand, seventy-three".