73464991 has 4 divisors (see below), whose sum is σ = 73589472. Its totient is φ = 73340512.

The previous prime is 73464983. The next prime is 73464997. The reversal of 73464991 is 19946437.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19946437 = 7 ⋅2849491.

It is a cyclic number.

It is not a de Polignac number, because 73464991 - 2³ = 73464983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73464997) 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, 61351 + ... + 62536.

It is an arithmetic number, because the mean of its divisors is an integer number (18397368).

Almost surely, 2^73464991 is an apocalyptic number.

73464991 is a deficient number, since it is larger than the sum of its proper divisors (124481).

73464991 is a wasteful number, since it uses less digits than its factorization.

73464991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124480.

The product of its digits is 163296, while the sum is 43.

The square root of 73464991 is about 8571.1720902103. The cubic root of 73464991 is about 418.8194189213.

The spelling of 73464991 in words is "seventy-three million, four hundred sixty-four thousand, nine hundred ninety-one".