427899644 has 12 divisors (see below), whose sum is σ = 749837424. Its totient is φ = 213660384.

The previous prime is 427899623. The next prime is 427899649. The reversal of 427899644 is 446998724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427899649) 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, 69017 + ... + 74960.

It is an arithmetic number, because the mean of its divisors is an integer number (62486452).

Almost surely, 2^427899644 is an apocalyptic number.

It is an amenable number.

427899644 is a deficient number, since it is larger than the sum of its proper divisors (321937780).

427899644 is a wasteful number, since it uses less digits than its factorization.

427899644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144724 (or 144722 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 53.

The square root of 427899644 is about 20685.7352782056. The cubic root of 427899644 is about 753.5532982502.

The spelling of 427899644 in words is "four hundred twenty-seven million, eight hundred ninety-nine thousand, six hundred forty-four".