427825091 has 4 divisors (see below), whose sum is σ = 428048352. Its totient is φ = 427601832.

The previous prime is 427825087. The next prime is 427825127. The reversal of 427825091 is 190528724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 427825091 - 2² = 427825087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427825891) 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, 108731 + ... + 112596.

It is an arithmetic number, because the mean of its divisors is an integer number (107012088).

Almost surely, 2^427825091 is an apocalyptic number.

427825091 is a deficient number, since it is larger than the sum of its proper divisors (223261).

427825091 is a wasteful number, since it uses less digits than its factorization.

427825091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223260.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 427825091 is about 20683.9331607893. The cubic root of 427825091 is about 753.5095318182.

The spelling of 427825091 in words is "four hundred twenty-seven million, eight hundred twenty-five thousand, ninety-one".