427235657 has 8 divisors (see below), whose sum is σ = 432144960. Its totient is φ = 422341200.

The previous prime is 427235591. The next prime is 427235663. The reversal of 427235657 is 756532724.

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

It is not a de Polignac number, because 427235657 - 2¹² = 427231561 is a prime.

It is a super-2 number, since 2×427235657² = 365060613224443298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427231657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60407 + ... + 67107.

It is an arithmetic number, because the mean of its divisors is an integer number (54018120).

Almost surely, 2^427235657 is an apocalyptic number.

It is an amenable number.

427235657 is a deficient number, since it is larger than the sum of its proper divisors (4909303).

427235657 is a wasteful number, since it uses less digits than its factorization.

427235657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7423.

The product of its digits is 352800, while the sum is 41.

The square root of 427235657 is about 20669.6796540246. The cubic root of 427235657 is about 753.1633247073.

The spelling of 427235657 in words is "four hundred twenty-seven million, two hundred thirty-five thousand, six hundred fifty-seven".