973751990 has 32 divisors (see below), whose sum is σ = 1773031680. Its totient is φ = 385020000.

The previous prime is 973751983. The next prime is 973752001. The reversal of 973751990 is 99157379.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347495 + ... + 350285.

It is an arithmetic number, because the mean of its divisors is an integer number (55407240).

Almost surely, 2^973751990 is an apocalyptic number.

973751990 is a deficient number, since it is larger than the sum of its proper divisors (799279690).

973751990 is a wasteful number, since it uses less digits than its factorization.

973751990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188.

The product of its (nonzero) digits is 535815, while the sum is 50.

The square root of 973751990 is about 31204.9994391924. Note that the first 3 decimals coincide. The cubic root of 973751990 is about 991.1729762414.

The spelling of 973751990 in words is "nine hundred seventy-three million, seven hundred fifty-one thousand, nine hundred ninety".