71858252 has 12 divisors (see below), whose sum is σ = 133149240. Its totient is φ = 33815616.

The previous prime is 71858249. The next prime is 71858261. The reversal of 71858252 is 25285817.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528302 + ... + 528437.

It is an arithmetic number, because the mean of its divisors is an integer number (11095770).

Almost surely, 2^71858252 is an apocalyptic number.

It is an amenable number.

71858252 is a deficient number, since it is larger than the sum of its proper divisors (61290988).

71858252 is a wasteful number, since it uses less digits than its factorization.

71858252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056760 (or 1056758 counting only the distinct ones).

The product of its digits is 44800, while the sum is 38.

The square root of 71858252 is about 8476.9246782073. The cubic root of 71858252 is about 415.7435781060.

The spelling of 71858252 in words is "seventy-one million, eight hundred fifty-eight thousand, two hundred fifty-two".