246397621 has 4 divisors (see below), whose sum is σ = 247636000. Its totient is φ = 245159244.

The previous prime is 246397607. The next prime is 246397637. The reversal of 246397621 is 126793642.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 246397621 - 2⁷ = 246397493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (246397721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618891 + ... + 619288.

It is an arithmetic number, because the mean of its divisors is an integer number (61909000).

Almost surely, 2^246397621 is an apocalyptic number.

It is an amenable number.

246397621 is a deficient number, since it is larger than the sum of its proper divisors (1238379).

246397621 is a wasteful number, since it uses less digits than its factorization.

246397621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238378.

The product of its digits is 108864, while the sum is 40.

The square root of 246397621 is about 15697.0577179292. The cubic root of 246397621 is about 626.9200652388.

The spelling of 246397621 in words is "two hundred forty-six million, three hundred ninety-seven thousand, six hundred twenty-one".