71976105 has 12 divisors (see below), whose sum is σ = 124758660. Its totient is φ = 38387232.

The previous prime is 71976103. The next prime is 71976139. The reversal of 71976105 is 50167917.

It can be written as a sum of positive squares in 2 ways, for example, as 12809241 + 59166864 = 3579^2 + 7692^2 .

It is not a de Polignac number, because 71976105 - 2¹ = 71976103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71976105.

It is not an unprimeable number, because it can be changed into a prime (71976103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 799690 + ... + 799779.

It is an arithmetic number, because the mean of its divisors is an integer number (10396555).

Almost surely, 2^71976105 is an apocalyptic number.

It is an amenable number.

71976105 is a deficient number, since it is larger than the sum of its proper divisors (52782555).

71976105 is a wasteful number, since it uses less digits than its factorization.

71976105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599480 (or 1599477 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 71976105 is about 8483.8732310190. The cubic root of 71976105 is about 415.9707376637.

The spelling of 71976105 in words is "seventy-one million, nine hundred seventy-six thousand, one hundred five".