1690150979 has 16 divisors (see below), whose sum is σ = 1857600000. Its totient is φ = 1525043520.

The previous prime is 1690150967. The next prime is 1690150997. The reversal of 1690150979 is 9790510961.

It is not a de Polignac number, because 1690150979 - 2⁴ = 1690150963 is a prime.

It is a super-2 number, since 2×1690150979² = 5713220663629316882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1690150949) 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, 1310567 + ... + 1311855.

It is an arithmetic number, because the mean of its divisors is an integer number (116100000).

Almost surely, 2^1690150979 is an apocalyptic number.

1690150979 is a deficient number, since it is larger than the sum of its proper divisors (167449021).

1690150979 is a wasteful number, since it uses less digits than its factorization.

1690150979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098.

The product of its (nonzero) digits is 153090, while the sum is 47.

The square root of 1690150979 is about 41111.4458393280. The cubic root of 1690150979 is about 1191.1738949269.

The spelling of 1690150979 in words is "one billion, six hundred ninety million, one hundred fifty thousand, nine hundred seventy-nine".