71814463 has 6 divisors (see below), whose sum is σ = 82099304. Its totient is φ = 61536036.

The previous prime is 71814461. The next prime is 71814473. The reversal of 71814463 is 36441817.

It is a happy number.

It is not a de Polignac number, because 71814463 - 2¹ = 71814461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71814461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20820 + ... + 24022.

Almost surely, 2^71814463 is an apocalyptic number.

71814463 is a deficient number, since it is larger than the sum of its proper divisors (10284841).

71814463 is an frugal number, since it uses more digits than its factorization.

71814463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6413 (or 3210 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 71814463 is about 8474.3414493399. The cubic root of 71814463 is about 415.6591123037.

Multiplying 71814463 by its product of digits (16128), we get a square (1158223659264 = 1076208²).

The spelling of 71814463 in words is "seventy-one million, eight hundred fourteen thousand, four hundred sixty-three".