32400427 has 2 divisors, whose sum is σ = 32400428. Its totient is φ = 32400426.

The previous prime is 32400421. The next prime is 32400439. The reversal of 32400427 is 72400423.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32400427 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 32400398 and 32400407.

It is not a weakly prime, because it can be changed into another prime (32400421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16200213 + 16200214.

It is an arithmetic number, because the mean of its divisors is an integer number (16200214).

Almost surely, 2^32400427 is an apocalyptic number.

32400427 is a deficient number, since it is larger than the sum of its proper divisors (1).

32400427 is an equidigital number, since it uses as much as digits as its factorization.

32400427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 32400427 is about 5692.1372963062. The cubic root of 32400427 is about 318.7989712277.

The spelling of 32400427 in words is "thirty-two million, four hundred thousand, four hundred twenty-seven".