71487694 has 4 divisors (see below), whose sum is σ = 107231544. Its totient is φ = 35743846.

The previous prime is 71487683. The next prime is 71487707. The reversal of 71487694 is 49678417.

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

It is a super-2 number, since 2×71487694² = 10220980786875272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17871922 + ... + 17871925.

It is an arithmetic number, because the mean of its divisors is an integer number (26807886).

Almost surely, 2^71487694 is an apocalyptic number.

71487694 is a deficient number, since it is larger than the sum of its proper divisors (35743850).

71487694 is a wasteful number, since it uses less digits than its factorization.

71487694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35743849.

The product of its digits is 338688, while the sum is 46.

The square root of 71487694 is about 8455.0395622966. The cubic root of 71487694 is about 415.0277118960.

The spelling of 71487694 in words is "seventy-one million, four hundred eighty-seven thousand, six hundred ninety-four".