690748122 has 16 divisors (see below), whose sum is σ = 1382344992. Its totient is φ = 230107920.

The previous prime is 690748111. The next prime is 690748127. The reversal of 690748122 is 221847096.

It is not an unprimeable number, because it can be changed into a prime (690748127) 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, 24529 + ... + 44532.

It is an arithmetic number, because the mean of its divisors is an integer number (86396562).

Almost surely, 2^690748122 is an apocalyptic number.

690748122 is an abundant number, since it is smaller than the sum of its proper divisors (691596870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

690748122 is a wasteful number, since it uses less digits than its factorization.

690748122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70733.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 690748122 is about 26282.0874741715. The cubic root of 690748122 is about 883.9748402645.

The spelling of 690748122 in words is "six hundred ninety million, seven hundred forty-eight thousand, one hundred twenty-two".