71400718 has 4 divisors (see below), whose sum is σ = 107101080. Its totient is φ = 35700358.

The previous prime is 71400709. The next prime is 71400737. The reversal of 71400718 is 81700417.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17850178 + ... + 17850181.

It is an arithmetic number, because the mean of its divisors is an integer number (26775270).

Almost surely, 2^71400718 is an apocalyptic number.

71400718 is a deficient number, since it is larger than the sum of its proper divisors (35700362).

71400718 is a wasteful number, since it uses less digits than its factorization.

71400718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35700361.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 71400718 is about 8449.8945555551. The cubic root of 71400718 is about 414.8593281386.

It can be divided in two parts, 714007 and 18, that added together give a square (714025 = 845²).

The spelling of 71400718 in words is "seventy-one million, four hundred thousand, seven hundred eighteen".