407542879 has 2 divisors, whose sum is σ = 407542880. Its totient is φ = 407542878.

The previous prime is 407542871. The next prime is 407542939. The reversal of 407542879 is 978245704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 407542879 - 2³ = 407542871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (407542871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203771439 + 203771440.

It is an arithmetic number, because the mean of its divisors is an integer number (203771440).

Almost surely, 2^407542879 is an apocalyptic number.

407542879 is a deficient number, since it is larger than the sum of its proper divisors (1).

407542879 is an equidigital number, since it uses as much as digits as its factorization.

407542879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 407542879 is about 20187.6912746356. The cubic root of 407542879 is about 741.4088566936.

The spelling of 407542879 in words is "four hundred seven million, five hundred forty-two thousand, eight hundred seventy-nine".