2453999 has 2 divisors, whose sum is σ = 2454000. Its totient is φ = 2453998.

The previous prime is 2453923. The next prime is 2454007. The reversal of 2453999 is 9993542.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2453999 is a prime.

It is a super-2 number, since 2×2453999² = 12044222184002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2453909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1226999 + 1227000.

It is an arithmetic number, because the mean of its divisors is an integer number (1227000).

2^2453999 is an apocalyptic number.

2453999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2453999 is an equidigital number, since it uses as much as digits as its factorization.

2453999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 41.

The square root of 2453999 is about 1566.5244970954. The cubic root of 2453999 is about 134.8832827491.

The spelling of 2453999 in words is "two million, four hundred fifty-three thousand, nine hundred ninety-nine".