8400653533 has 4 divisors (see below), whose sum is σ = 8401019328. Its totient is φ = 8400287740.

The previous prime is 8400653507. The next prime is 8400653537. The reversal of 8400653533 is 3353560048.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8400653533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8400653492 and 8400653501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8400653537) 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, 145963 + ... + 195208.

It is an arithmetic number, because the mean of its divisors is an integer number (2100254832).

Almost surely, 2^8400653533 is an apocalyptic number.

It is an amenable number.

8400653533 is a deficient number, since it is larger than the sum of its proper divisors (365795).

8400653533 is a wasteful number, since it uses less digits than its factorization.

8400653533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365794.

The product of its (nonzero) digits is 129600, while the sum is 37.

The square root of 8400653533 is about 91655.0791445842. The cubic root of 8400653533 is about 2032.8454304023.

The spelling of 8400653533 in words is "eight billion, four hundred million, six hundred fifty-three thousand, five hundred thirty-three".