1447857423 has 16 divisors (see below), whose sum is σ = 2171458400. Its totient is φ = 965236824.

The previous prime is 1447857409. The next prime is 1447857427. The reversal of 1447857423 is 3247587441.

1447857423 is a `hidden beast` number, since 1 + 4 + 4 + 78 + 574 + 2 + 3 = 666.

It is not a de Polignac number, because 1447857423 - 2⁴ = 1447857407 is a prime.

It is a super-2 number, since 2×1447857423² = 4192582234672401858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1447857427) 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, 328828 + ... + 333201.

It is an arithmetic number, because the mean of its divisors is an integer number (135716150).

Almost surely, 2^1447857423 is an apocalyptic number.

1447857423 is a deficient number, since it is larger than the sum of its proper divisors (723600977).

1447857423 is an frugal number, since it uses more digits than its factorization.

1447857423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662050 (or 662032 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 1447857423 is about 38050.7217145746. The cubic root of 1447857423 is about 1131.2934318744.

The spelling of 1447857423 in words is "one billion, four hundred forty-seven million, eight hundred fifty-seven thousand, four hundred twenty-three".