71230478 has 16 divisors (see below), whose sum is σ = 116806320. Its totient is φ = 32308800.

The previous prime is 71230477. The next prime is 71230483. The reversal of 71230478 is 87403217.

It is a happy number.

It is a super-2 number, since 2×71230478² = 10147561992216968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71230477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8018 + ... + 14378.

It is an arithmetic number, because the mean of its divisors is an integer number (7300395).

Almost surely, 2^71230478 is an apocalyptic number.

71230478 is a deficient number, since it is larger than the sum of its proper divisors (45575842).

71230478 is a wasteful number, since it uses less digits than its factorization.

71230478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6883.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 71230478 is about 8439.8150453668. The cubic root of 71230478 is about 414.5293507978.

The spelling of 71230478 in words is "seventy-one million, two hundred thirty thousand, four hundred seventy-eight".