427451957 has 4 divisors (see below), whose sum is σ = 431602080. Its totient is φ = 423301836.

The previous prime is 427451951. The next prime is 427452007. The reversal of 427451957 is 759154724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427451957 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 (427451951) 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, 2074907 + ... + 2075112.

It is an arithmetic number, because the mean of its divisors is an integer number (107900520).

Almost surely, 2^427451957 is an apocalyptic number.

It is an amenable number.

427451957 is a deficient number, since it is larger than the sum of its proper divisors (4150123).

427451957 is a wasteful number, since it uses less digits than its factorization.

427451957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4150122.

The product of its digits is 352800, while the sum is 44.

The square root of 427451957 is about 20674.9112936428. The cubic root of 427451957 is about 753.2904065958.

The spelling of 427451957 in words is "four hundred twenty-seven million, four hundred fifty-one thousand, nine hundred fifty-seven".