997125770 has 8 divisors (see below), whose sum is σ = 1794826404. Its totient is φ = 398850304.

The previous prime is 997125751. The next prime is 997125793. The reversal of 997125770 is 77521799.

It can be written as a sum of positive squares in 2 ways, for example, as 996854329 + 271441 = 31573^2 + 521^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49856279 + ... + 49856298.

Almost surely, 2^997125770 is an apocalyptic number.

997125770 is a deficient number, since it is larger than the sum of its proper divisors (797700634).

997125770 is a wasteful number, since it uses less digits than its factorization.

997125770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99712584.

The product of its (nonzero) digits is 277830, while the sum is 47.

The square root of 997125770 is about 31577.2983328213. The cubic root of 997125770 is about 999.0410039539.

The spelling of 997125770 in words is "nine hundred ninety-seven million, one hundred twenty-five thousand, seven hundred seventy".