3409990261 has 2 divisors, whose sum is σ = 3409990262. Its totient is φ = 3409990260.

The previous prime is 3409990253. The next prime is 3409990277. The reversal of 3409990261 is 1620999043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3399589636 + 10400625 = 58306^2 + 3225^2 .

It is a cyclic number.

It is not a de Polignac number, because 3409990261 - 2³ = 3409990253 is a prime.

It is a super-2 number, since 2×3409990261² = 23256067160229696242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3409990291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1704995130 + 1704995131.

It is an arithmetic number, because the mean of its divisors is an integer number (1704995131).

Almost surely, 2^3409990261 is an apocalyptic number.

It is an amenable number.

3409990261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3409990261 is an equidigital number, since it uses as much as digits as its factorization.

3409990261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 3409990261 is about 58395.1218938706. The cubic root of 3409990261 is about 1505.1659307195.

The spelling of 3409990261 in words is "three billion, four hundred nine million, nine hundred ninety thousand, two hundred sixty-one".