997119490 has 8 divisors (see below), whose sum is σ = 1794815100. Its totient is φ = 398847792.

The previous prime is 997119463. The next prime is 997119491. The reversal of 997119490 is 94911799.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 967645449 + 29474041 = 31107^2 + 5429^2 .

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

It is not an unprimeable number, because it can be changed into a prime (997119491) 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, 49855965 + ... + 49855984.

Almost surely, 2^997119490 is an apocalyptic number.

997119490 is a deficient number, since it is larger than the sum of its proper divisors (797695610).

997119490 is a wasteful number, since it uses less digits than its factorization.

997119490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99711956.

The product of its (nonzero) digits is 183708, while the sum is 49.

The square root of 997119490 is about 31577.1988941388. The cubic root of 997119490 is about 999.0389065954.

The spelling of 997119490 in words is "nine hundred ninety-seven million, one hundred nineteen thousand, four hundred ninety".