699980122 has 4 divisors (see below), whose sum is σ = 1049970186. Its totient is φ = 349990060.

The previous prime is 699980111. The next prime is 699980123. The reversal of 699980122 is 221089996.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 360278361 + 339701761 = 18981^2 + 18431^2 .

It is not an unprimeable number, because it can be changed into a prime (699980123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174995029 + ... + 174995032.

Almost surely, 2^699980122 is an apocalyptic number.

699980122 is a deficient number, since it is larger than the sum of its proper divisors (349990064).

699980122 is a wasteful number, since it uses less digits than its factorization.

699980122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349990063.

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 699980122 is about 26457.1374490892. The cubic root of 699980122 is about 887.8955970174.

The spelling of 699980122 in words is "six hundred ninety-nine million, nine hundred eighty thousand, one hundred twenty-two".