71494593 has 4 divisors (see below), whose sum is σ = 95326128. Its totient is φ = 47663060.

The previous prime is 71494583. The next prime is 71494601. The reversal of 71494593 is 39549417.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71494593 is a prime.

It is a super-2 number, since 2×71494593² = 10222953656471298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71494513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11915763 + ... + 11915768.

It is an arithmetic number, because the mean of its divisors is an integer number (23831532).

Almost surely, 2^71494593 is an apocalyptic number.

It is an amenable number.

71494593 is a deficient number, since it is larger than the sum of its proper divisors (23831535).

71494593 is a wasteful number, since it uses less digits than its factorization.

71494593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23831534.

The product of its digits is 136080, while the sum is 42.

The square root of 71494593 is about 8455.4475339866. The cubic root of 71494593 is about 415.0410623713.

The spelling of 71494593 in words is "seventy-one million, four hundred ninety-four thousand, five hundred ninety-three".