71497422 has 24 divisors (see below), whose sum is σ = 155324520. Its totient is φ = 23768880.

The previous prime is 71497421. The next prime is 71497451. The reversal of 71497422 is 22479417.

It is a super-2 number, since 2×71497422² = 10223762705292168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71497421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1897 + ... + 12107.

It is an arithmetic number, because the mean of its divisors is an integer number (6471855).

Almost surely, 2^71497422 is an apocalyptic number.

71497422 is an abundant number, since it is smaller than the sum of its proper divisors (83827098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71497422 is a wasteful number, since it uses less digits than its factorization.

71497422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10608 (or 10605 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 71497422 is about 8455.6148209341. The cubic root of 71497422 is about 415.0465366113.

The spelling of 71497422 in words is "seventy-one million, four hundred ninety-seven thousand, four hundred twenty-two".