2398651 has 4 divisors (see below), whose sum is σ = 2419992. Its totient is φ = 2377312.

The previous prime is 2398637. The next prime is 2398657. The reversal of 2398651 is 1568932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2398651 - 2⁷ = 2398523 is a prime.

It is a Duffinian number.

2398651 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (2398657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10501 + ... + 10726.

It is an arithmetic number, because the mean of its divisors is an integer number (604998).

2^2398651 is an apocalyptic number.

2398651 is a deficient number, since it is larger than the sum of its proper divisors (21341).

2398651 is a wasteful number, since it uses less digits than its factorization.

2398651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21340.

The product of its digits is 12960, while the sum is 34.

The square root of 2398651 is about 1548.7578894069. The cubic root of 2398651 is about 133.8615001747.

The spelling of 2398651 in words is "two million, three hundred ninety-eight thousand, six hundred fifty-one".