997883194 has 32 divisors (see below), whose sum is σ = 1870511616. Its totient is φ = 387881520.

The previous prime is 997883191. The next prime is 997883239. The reversal of 997883194 is 491388799.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (997883191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60909 + ... + 75535.

It is an arithmetic number, because the mean of its divisors is an integer number (58453488).

Almost surely, 2^997883194 is an apocalyptic number.

997883194 is a deficient number, since it is larger than the sum of its proper divisors (872628422).

997883194 is a wasteful number, since it uses less digits than its factorization.

997883194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15090.

The product of its digits is 3919104, while the sum is 58.

The square root of 997883194 is about 31589.2892291042. The cubic root of 997883194 is about 999.2938995395.

The spelling of 997883194 in words is "nine hundred ninety-seven million, eight hundred eighty-three thousand, one hundred ninety-four".