690220411 has 2 divisors, whose sum is σ = 690220412. Its totient is φ = 690220410.

The previous prime is 690220397. The next prime is 690220423. The reversal of 690220411 is 114022096.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 690220411 - 2⁵ = 690220379 is a prime.

It is a super-2 number, since 2×690220411² = 952808431522017842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (690220471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345110205 + 345110206.

It is an arithmetic number, because the mean of its divisors is an integer number (345110206).

Almost surely, 2^690220411 is an apocalyptic number.

690220411 is a deficient number, since it is larger than the sum of its proper divisors (1).

690220411 is an equidigital number, since it uses as much as digits as its factorization.

690220411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 690220411 is about 26272.0461898193. The cubic root of 690220411 is about 883.7496727611.

The spelling of 690220411 in words is "six hundred ninety million, two hundred twenty thousand, four hundred eleven".