1690097215 has 16 divisors (see below), whose sum is σ = 2203729920. Its totient is φ = 1239593760.

The previous prime is 1690097179. The next prime is 1690097219. The reversal of 1690097215 is 5127900961.

It is not a de Polignac number, because 1690097215 - 2¹⁵ = 1690064447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690097219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283999 + ... + 289888.

It is an arithmetic number, because the mean of its divisors is an integer number (137733120).

Almost surely, 2^1690097215 is an apocalyptic number.

1690097215 is a deficient number, since it is larger than the sum of its proper divisors (513632705).

1690097215 is a wasteful number, since it uses less digits than its factorization.

1690097215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573942.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 1690097215 is about 41110.7919529653. The cubic root of 1690097215 is about 1191.1612643092.

The spelling of 1690097215 in words is "one billion, six hundred ninety million, ninety-seven thousand, two hundred fifteen".