71949715 has 8 divisors (see below), whose sum is σ = 88176960. Its totient is φ = 56334912.

The previous prime is 71949679. The next prime is 71949743. The reversal of 71949715 is 51794917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71949715 - 2¹³ = 71941523 is a prime.

It is a super-2 number, since 2×71949715² = 10353522977162450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152850 + ... + 153319.

It is an arithmetic number, because the mean of its divisors is an integer number (11022120).

Almost surely, 2^71949715 is an apocalyptic number.

71949715 is a deficient number, since it is larger than the sum of its proper divisors (16227245).

71949715 is a wasteful number, since it uses less digits than its factorization.

71949715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306221.

The product of its digits is 79380, while the sum is 43.

The square root of 71949715 is about 8482.3177846624. The cubic root of 71949715 is about 415.9198929671.

The spelling of 71949715 in words is "seventy-one million, nine hundred forty-nine thousand, seven hundred fifteen".