990572479 has 16 divisors (see below), whose sum is σ = 1074769920. Its totient is φ = 907549920.

The previous prime is 990572461. The next prime is 990572501. The reversal of 990572479 is 974275099.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 990572479 - 2¹¹ = 990570431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990572179) 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, 1687224 + ... + 1687810.

It is an arithmetic number, because the mean of its divisors is an integer number (67173120).

Almost surely, 2^990572479 is an apocalyptic number.

990572479 is a deficient number, since it is larger than the sum of its proper divisors (84197441).

990572479 is a wasteful number, since it uses less digits than its factorization.

990572479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The square root of 990572479 is about 31473.3614188253. The cubic root of 990572479 is about 996.8475656002.

The spelling of 990572479 in words is "nine hundred ninety million, five hundred seventy-two thousand, four hundred seventy-nine".