73890697 has 4 divisors (see below), whose sum is σ = 77103360. Its totient is φ = 70678036.

The previous prime is 73890659. The next prime is 73890709. The reversal of 73890697 is 79609837.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73890697 - 2¹⁵ = 73857929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73890697.

It is not an unprimeable number, because it can be changed into a prime (73890617) 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, 1606297 + ... + 1606342.

It is an arithmetic number, because the mean of its divisors is an integer number (19275840).

Almost surely, 2^73890697 is an apocalyptic number.

It is an amenable number.

73890697 is a deficient number, since it is larger than the sum of its proper divisors (3212663).

73890697 is a wasteful number, since it uses less digits than its factorization.

73890697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3212662.

The product of its (nonzero) digits is 571536, while the sum is 49.

The square root of 73890697 is about 8595.9698114872. The cubic root of 73890697 is about 419.6268359698.

The spelling of 73890697 in words is "seventy-three million, eight hundred ninety thousand, six hundred ninety-seven".