73513907 has 4 divisors (see below), whose sum is σ = 77383080. Its totient is φ = 69644736.

The previous prime is 73513889. The next prime is 73513919. The reversal of 73513907 is 70931537.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70931537 = 3947 ⋅17971.

It is a cyclic number.

It is not a de Polignac number, because 73513907 - 2⁸ = 73513651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73513987) 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, 1934558 + ... + 1934595.

It is an arithmetic number, because the mean of its divisors is an integer number (19345770).

Almost surely, 2^73513907 is an apocalyptic number.

73513907 is a deficient number, since it is larger than the sum of its proper divisors (3869173).

73513907 is a wasteful number, since it uses less digits than its factorization.

73513907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3869172.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 73513907 is about 8574.0251340896. The cubic root of 73513907 is about 418.9123540054.

The spelling of 73513907 in words is "seventy-three million, five hundred thirteen thousand, nine hundred seven".