71401933 has 2 divisors, whose sum is σ = 71401934. Its totient is φ = 71401932.

The previous prime is 71401927. The next prime is 71401949. The reversal of 71401933 is 33910417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51883209 + 19518724 = 7203^2 + 4418^2 .

It is an emirp because it is prime and its reverse (33910417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71401933 - 2⁵ = 71401901 is a prime.

It is a super-2 number, since 2×71401933² = 10196472072272978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71401963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35700966 + 35700967.

It is an arithmetic number, because the mean of its divisors is an integer number (35700967).

Almost surely, 2^71401933 is an apocalyptic number.

It is an amenable number.

71401933 is a deficient number, since it is larger than the sum of its proper divisors (1).

71401933 is an equidigital number, since it uses as much as digits as its factorization.

71401933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 71401933 is about 8449.9664496375. The cubic root of 71401933 is about 414.8616812953.

The spelling of 71401933 in words is "seventy-one million, four hundred one thousand, nine hundred thirty-three".