423647057 has 8 divisors (see below), whose sum is σ = 430673760. Its totient is φ = 416678080.

The previous prime is 423647027. The next prime is 423647099. The reversal of 423647057 is 750746324.

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

It is a cyclic number.

It is not a de Polignac number, because 423647057 - 2⁸ = 423646801 is a prime.

It is a super-2 number, since 2×423647057² = 358953657809522498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423647057.

It is not an unprimeable number, because it can be changed into a prime (423647017) 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, 494 + ... + 29112.

It is an arithmetic number, because the mean of its divisors is an integer number (53834220).

Almost surely, 2^423647057 is an apocalyptic number.

It is an amenable number.

423647057 is a deficient number, since it is larger than the sum of its proper divisors (7026703).

423647057 is a wasteful number, since it uses less digits than its factorization.

423647057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28863.

The product of its (nonzero) digits is 141120, while the sum is 38.

The square root of 423647057 is about 20582.6882840896. The cubic root of 423647057 is about 751.0486409713.

The spelling of 423647057 in words is "four hundred twenty-three million, six hundred forty-seven thousand, fifty-seven".