71901079 has 2 divisors, whose sum is σ = 71901080. Its totient is φ = 71901078.

The previous prime is 71901047. The next prime is 71901083. The reversal of 71901079 is 97010917.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71901079 - 2⁵ = 71901047 is a prime.

It is a super-2 number, since 2×71901079² = 10339530322728482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71901029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35950539 + 35950540.

It is an arithmetic number, because the mean of its divisors is an integer number (35950540).

Almost surely, 2^71901079 is an apocalyptic number.

71901079 is a deficient number, since it is larger than the sum of its proper divisors (1).

71901079 is an equidigital number, since it uses as much as digits as its factorization.

71901079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3969, while the sum is 34.

The square root of 71901079 is about 8479.4503949254. The cubic root of 71901079 is about 415.8261550946.

The spelling of 71901079 in words is "seventy-one million, nine hundred one thousand, seventy-nine".