71495478 has 24 divisors (see below), whose sum is σ = 155071800. Its totient is φ = 23806464.

The previous prime is 71495449. The next prime is 71495497. The reversal of 71495478 is 87459417.

It is a happy number.

It is a super-2 number, since 2×71495478² = 10223206748896968, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23953 + ... + 26771.

It is an arithmetic number, because the mean of its divisors is an integer number (6461325).

Almost surely, 2^71495478 is an apocalyptic number.

71495478 is an abundant number, since it is smaller than the sum of its proper divisors (83576322).

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

71495478 is a wasteful number, since it uses less digits than its factorization.

71495478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236 (or 4233 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 71495478 is about 8455.4998669505. The cubic root of 71495478 is about 415.0427749010.

The spelling of 71495478 in words is "seventy-one million, four hundred ninety-five thousand, four hundred seventy-eight".