427794157 has 12 divisors (see below), whose sum is σ = 502048476. Its totient is φ = 363431040.

The previous prime is 427794113. The next prime is 427794161. The reversal of 427794157 is 751497724.

It can be written as a sum of positive squares in 2 ways, for example, as 135349956 + 292444201 = 11634^2 + 17101^2 .

It is a de Polignac number, because none of the positive numbers 2^k-427794157 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 (427794187) 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, 33094 + ... + 44167.

It is an arithmetic number, because the mean of its divisors is an integer number (41837373).

Almost surely, 2^427794157 is an apocalyptic number.

It is an amenable number.

427794157 is a deficient number, since it is larger than the sum of its proper divisors (74254319).

427794157 is a wasteful number, since it uses less digits than its factorization.

427794157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77388 (or 77381 counting only the distinct ones).

The product of its digits is 493920, while the sum is 46.

The square root of 427794157 is about 20683.1853687966. The cubic root of 427794157 is about 753.4913704822.

The spelling of 427794157 in words is "four hundred twenty-seven million, seven hundred ninety-four thousand, one hundred fifty-seven".