71498473 has 2 divisors, whose sum is σ = 71498474. Its totient is φ = 71498472.

The previous prime is 71498429. The next prime is 71498477. The reversal of 71498473 is 37489417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64513024 + 6985449 = 8032^2 + 2643^2 .

It is a cyclic number.

It is not a de Polignac number, because 71498473 - 2¹³ = 71490281 is a prime.

It is a super-2 number, since 2×71498473² = 10224063282663458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71498477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35749236 + 35749237.

It is an arithmetic number, because the mean of its divisors is an integer number (35749237).

Almost surely, 2^71498473 is an apocalyptic number.

It is an amenable number.

71498473 is a deficient number, since it is larger than the sum of its proper divisors (1).

71498473 is an equidigital number, since it uses as much as digits as its factorization.

71498473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The square root of 71498473 is about 8455.6769687589. The cubic root of 71498473 is about 415.0485703060.

The spelling of 71498473 in words is "seventy-one million, four hundred ninety-eight thousand, four hundred seventy-three".