8400953 has 8 divisors (see below), whose sum is σ = 9378336. Its totient is φ = 7459200.

The previous prime is 8400943. The next prime is 8400967. The reversal of 8400953 is 3590048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8400953 - 2⁴ = 8400937 is a prime.

It is a super-2 number, since 2×8400953² = 141152022616418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8400943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8408 + ... + 9353.

It is an arithmetic number, because the mean of its divisors is an integer number (1172292).

Almost surely, 2^8400953 is an apocalyptic number.

It is an amenable number.

8400953 is a deficient number, since it is larger than the sum of its proper divisors (977383).

8400953 is a wasteful number, since it uses less digits than its factorization.

8400953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17815.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 8400953 is about 2898.4397526945. The cubic root of 8400953 is about 203.2869585780.

The spelling of 8400953 in words is "eight million, four hundred thousand, nine hundred fifty-three".