8257243401 has 18 divisors (see below), whose sum is σ = 13109986890. Its totient is φ = 5004389280.

The previous prime is 8257243387. The next prime is 8257243403. The reversal of 8257243401 is 1043427528.

It is a happy number.

8257243401 is a `hidden beast` number, since 8 + 2 + 5 + 7 + 243 + 401 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5256395001 + 3000848400 = 72501^2 + 54780^2 .

It is not a de Polignac number, because 8257243401 - 2⁵ = 8257243369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8257243403) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3790116 + ... + 3792293.

It is an arithmetic number, because the mean of its divisors is an integer number (728332605).

Almost surely, 2^8257243401 is an apocalyptic number.

It is an amenable number.

8257243401 is a deficient number, since it is larger than the sum of its proper divisors (4852743489).

8257243401 is a wasteful number, since it uses less digits than its factorization.

8257243401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7582437 (or 7582423 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 8257243401 is about 90869.3754848134. The cubic root of 8257243401 is about 2021.2111973670.

The spelling of 8257243401 in words is "eight billion, two hundred fifty-seven million, two hundred forty-three thousand, four hundred one".