73073657 has 8 divisors (see below), whose sum is σ = 75018240. Its totient is φ = 71154720.

The previous prime is 73073653. The next prime is 73073699. The reversal of 73073657 is 75637037.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 73073657 - 2² = 73073653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73073657.

It is not an unprimeable number, because it can be changed into a prime (73073653) 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, 569 + ... + 12102.

It is an arithmetic number, because the mean of its divisors is an integer number (9377280).

Almost surely, 2^73073657 is an apocalyptic number.

It is an amenable number.

73073657 is a deficient number, since it is larger than the sum of its proper divisors (1944583).

73073657 is a wasteful number, since it uses less digits than its factorization.

73073657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12823.

The product of its (nonzero) digits is 92610, while the sum is 38.

The square root of 73073657 is about 8548.3131084443. The cubic root of 73073657 is about 418.0744374962.

It can be divided in two parts, 7307365 and 7, that multiplied together give a triangular number (51151555 = T₁₀₁₁₄).

The spelling of 73073657 in words is "seventy-three million, seventy-three thousand, six hundred fifty-seven".