73937661 has 8 divisors (see below), whose sum is σ = 112666944. Its totient is φ = 42250080.

The previous prime is 73937653. The next prime is 73937687. The reversal of 73937661 is 16673937.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73937661 - 2³ = 73937653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73937651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1760400 + ... + 1760441.

It is an arithmetic number, because the mean of its divisors is an integer number (14083368).

Almost surely, 2^73937661 is an apocalyptic number.

It is an amenable number.

73937661 is a deficient number, since it is larger than the sum of its proper divisors (38729283).

73937661 is a wasteful number, since it uses less digits than its factorization.

73937661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520851.

The product of its digits is 142884, while the sum is 42.

The square root of 73937661 is about 8598.7011228441. The cubic root of 73937661 is about 419.7157203253.

The spelling of 73937661 in words is "seventy-three million, nine hundred thirty-seven thousand, six hundred sixty-one".