990359769 has 16 divisors (see below), whose sum is σ = 1597891968. Its totient is φ = 532630272.

The previous prime is 990359767. The next prime is 990359807. The reversal of 990359769 is 967953099.

It is not a de Polignac number, because 990359769 - 2¹ = 990359767 is a prime.

It is a super-2 number, since 2×990359769² = 1961624944107466722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (990359767) 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, 1386702 + ... + 1387415.

It is an arithmetic number, because the mean of its divisors is an integer number (99868248).

Almost surely, 2^990359769 is an apocalyptic number.

It is an amenable number.

990359769 is a deficient number, since it is larger than the sum of its proper divisors (607532199).

990359769 is a wasteful number, since it uses less digits than its factorization.

990359769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774144.

The product of its (nonzero) digits is 4133430, while the sum is 57.

The square root of 990359769 is about 31469.9820305001. The cubic root of 990359769 is about 996.7762079999.

The spelling of 990359769 in words is "nine hundred ninety million, three hundred fifty-nine thousand, seven hundred sixty-nine".