73739963 has 4 divisors (see below), whose sum is σ = 80443608. Its totient is φ = 67036320.

The previous prime is 73739959. The next prime is 73739987. The reversal of 73739963 is 36993737.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73739963 - 2² = 73739959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73739903) 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, 3351806 + ... + 3351827.

It is an arithmetic number, because the mean of its divisors is an integer number (20110902).

Almost surely, 2^73739963 is an apocalyptic number.

73739963 is a deficient number, since it is larger than the sum of its proper divisors (6703645).

73739963 is a wasteful number, since it uses less digits than its factorization.

73739963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6703644.

The product of its digits is 642978, while the sum is 47.

The square root of 73739963 is about 8587.1976220418. The cubic root of 73739963 is about 419.3413011939.

The spelling of 73739963 in words is "seventy-three million, seven hundred thirty-nine thousand, nine hundred sixty-three".