427623645 has 16 divisors (see below), whose sum is σ = 700886592. Its totient is φ = 222503040.

The previous prime is 427623643. The next prime is 427623653. The reversal of 427623645 is 546326724.

It is not a de Polignac number, because 427623645 - 2¹ = 427623643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427623643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347047 + ... + 348276.

It is an arithmetic number, because the mean of its divisors is an integer number (43805412).

Almost surely, 2^427623645 is an apocalyptic number.

It is an amenable number.

427623645 is a deficient number, since it is larger than the sum of its proper divisors (273262947).

427623645 is a wasteful number, since it uses less digits than its factorization.

427623645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695372.

The product of its digits is 241920, while the sum is 39.

The square root of 427623645 is about 20679.0629623298. The cubic root of 427623645 is about 753.3912472553.

The spelling of 427623645 in words is "four hundred twenty-seven million, six hundred twenty-three thousand, six hundred forty-five".