71626541 has 4 divisors (see below), whose sum is σ = 81858912. Its totient is φ = 61394172.

The previous prime is 71626537. The next prime is 71626547. The reversal of 71626541 is 14562617.

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 not a de Polignac number, because 71626541 - 2² = 71626537 is a prime.

It is a super-2 number, since 2×71626541² = 10260722751249362, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71626498 and 71626507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71626547) 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, 5116175 + ... + 5116188.

It is an arithmetic number, because the mean of its divisors is an integer number (20464728).

Almost surely, 2^71626541 is an apocalyptic number.

It is an amenable number.

71626541 is a deficient number, since it is larger than the sum of its proper divisors (10232371).

71626541 is a wasteful number, since it uses less digits than its factorization.

71626541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10232370.

The product of its digits is 10080, while the sum is 32.

The square root of 71626541 is about 8463.2464811088. The cubic root of 71626541 is about 415.2962340340.

The spelling of 71626541 in words is "seventy-one million, six hundred twenty-six thousand, five hundred forty-one".