71874751 has 4 divisors (see below), whose sum is σ = 77403592. Its totient is φ = 66345912.

The previous prime is 71874749. The next prime is 71874767. The reversal of 71874751 is 15747817.

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

It is a cyclic number.

It is not a de Polignac number, because 71874751 - 2¹ = 71874749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71884751) 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, 2764401 + ... + 2764426.

It is an arithmetic number, because the mean of its divisors is an integer number (19350898).

Almost surely, 2^71874751 is an apocalyptic number.

71874751 is a deficient number, since it is larger than the sum of its proper divisors (5528841).

71874751 is a wasteful number, since it uses less digits than its factorization.

71874751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5528840.

The product of its digits is 54880, while the sum is 40.

The square root of 71874751 is about 8477.8977936750. The cubic root of 71874751 is about 415.7753945789.

The spelling of 71874751 in words is "seventy-one million, eight hundred seventy-four thousand, seven hundred fifty-one".