71798901 has 8 divisors (see below), whose sum is σ = 96885600. Its totient is φ = 47289072.

The previous prime is 71798887. The next prime is 71798911. The reversal of 71798901 is 10989717.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71798901 - 2⁷ = 71798773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71798911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143926 + ... + 144423.

It is an arithmetic number, because the mean of its divisors is an integer number (12110700).

Almost surely, 2^71798901 is an apocalyptic number.

It is an amenable number.

71798901 is a deficient number, since it is larger than the sum of its proper divisors (25086699).

71798901 is a wasteful number, since it uses less digits than its factorization.

71798901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288435.

The product of its (nonzero) digits is 31752, while the sum is 42.

The square root of 71798901 is about 8473.4232161506. The cubic root of 71798901 is about 415.6290860661.

The spelling of 71798901 in words is "seventy-one million, seven hundred ninety-eight thousand, nine hundred one".