71477091 has 12 divisors (see below), whose sum is σ = 117994032. Its totient is φ = 40844016.

The previous prime is 71477059. The next prime is 71477093. The reversal of 71477091 is 19077417.

It is not a de Polignac number, because 71477091 - 2⁵ = 71477059 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (71477093) 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, 567216 + ... + 567341.

It is an arithmetic number, because the mean of its divisors is an integer number (9832836).

Almost surely, 2^71477091 is an apocalyptic number.

71477091 is a deficient number, since it is larger than the sum of its proper divisors (46516941).

71477091 is a wasteful number, since it uses less digits than its factorization.

71477091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134570 (or 1134567 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

The square root of 71477091 is about 8454.4125165502. The cubic root of 71477091 is about 415.0071920174.

The spelling of 71477091 in words is "seventy-one million, four hundred seventy-seven thousand, ninety-one".