990417670 has 48 divisors (see below), whose sum is σ = 1964995200. Its totient is φ = 359152640.

The previous prime is 990417661. The next prime is 990417683. The reversal of 990417670 is 76714099.

It is a happy number.

It is a super-2 number, since 2×990417670² = 1961854322096457800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542379 + ... + 544201.

It is an arithmetic number, because the mean of its divisors is an integer number (40937400).

Almost surely, 2^990417670 is an apocalyptic number.

990417670 is a deficient number, since it is larger than the sum of its proper divisors (974577530).

990417670 is a wasteful number, since it uses less digits than its factorization.

990417670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 990417670 is about 31470.9019572048. The cubic root of 990417670 is about 996.7956329996.

The spelling of 990417670 in words is "nine hundred ninety million, four hundred seventeen thousand, six hundred seventy".