990612049 has 8 divisors (see below), whose sum is σ = 1198723968. Its totient is φ = 799149120.

The previous prime is 990612043. The next prime is 990612053. The reversal of 990612049 is 940216099.

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

It is not a de Polignac number, because 990612049 - 2⁵ = 990612017 is a prime.

It is a super-3 number, since 3×990612049³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (990612043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4162117 + ... + 4162354.

It is an arithmetic number, because the mean of its divisors is an integer number (149840496).

Almost surely, 2^990612049 is an apocalyptic number.

It is an amenable number.

990612049 is a deficient number, since it is larger than the sum of its proper divisors (208111919).

990612049 is a wasteful number, since it uses less digits than its factorization.

990612049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8324495.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 990612049 is about 31473.9900393960. The cubic root of 990612049 is about 996.8608389795.

The spelling of 990612049 in words is "nine hundred ninety million, six hundred twelve thousand, forty-nine".