3899407 has 2 divisors, whose sum is σ = 3899408. Its totient is φ = 3899406.

The previous prime is 3899383. The next prime is 3899411. The reversal of 3899407 is 7049983.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3899407 - 2⁷ = 3899279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3899407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3899507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1949703 + 1949704.

It is an arithmetic number, because the mean of its divisors is an integer number (1949704).

Almost surely, 2^3899407 is an apocalyptic number.

3899407 is a deficient number, since it is larger than the sum of its proper divisors (1).

3899407 is an equidigital number, since it uses as much as digits as its factorization.

3899407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 3899407 is about 1974.6916214944. The cubic root of 3899407 is about 157.3981133261.

The spelling of 3899407 in words is "three million, eight hundred ninety-nine thousand, four hundred seven".