2399407 has 2 divisors, whose sum is σ = 2399408. Its totient is φ = 2399406.

The previous prime is 2399399. The next prime is 2399461. The reversal of 2399407 is 7049932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2399407 - 2³ = 2399399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2399477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199703 + 1199704.

It is an arithmetic number, because the mean of its divisors is an integer number (1199704).

2^2399407 is an apocalyptic number.

2399407 is a deficient number, since it is larger than the sum of its proper divisors (1).

2399407 is an equidigital number, since it uses as much as digits as its factorization.

2399407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 2399407 is about 1549.0019367322. The cubic root of 2399407 is about 133.8755620598.

The spelling of 2399407 in words is "two million, three hundred ninety-nine thousand, four hundred seven".