8242407 has 12 divisors (see below), whose sum is σ = 12084280. Its totient is φ = 5412528.

The previous prime is 8242363. The next prime is 8242411. The reversal of 8242407 is 7042428.

It is a Cunningham number, because it is equal to 202³-1.

It is not a de Polignac number, because 8242407 - 2⁷ = 8242279 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 (8242457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6232 + ... + 7437.

Almost surely, 2^8242407 is an apocalyptic number.

8242407 is a deficient number, since it is larger than the sum of its proper divisors (3841873).

8242407 is a wasteful number, since it uses less digits than its factorization.

8242407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13742 (or 13739 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 8242407 is about 2870.9592473597. The cubic root of 8242407 is about 201.9999918309. Note that the first 5 decimals are identical.

It can be divided in two parts, 8242 and 407, that added together give a square (8649 = 93²).

The spelling of 8242407 in words is "eight million, two hundred forty-two thousand, four hundred seven".