71390498 has 4 divisors (see below), whose sum is σ = 107085750. Its totient is φ = 35695248.

The previous prime is 71390491. The next prime is 71390513. The reversal of 71390498 is 89409317.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 69438889 + 1951609 = 8333^2 + 1397^2 .

It is not an unprimeable number, because it can be changed into a prime (71390491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17847623 + ... + 17847626.

Almost surely, 2^71390498 is an apocalyptic number.

71390498 is a deficient number, since it is larger than the sum of its proper divisors (35695252).

71390498 is a wasteful number, since it uses less digits than its factorization.

71390498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35695251.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 71390498 is about 8449.2897926394. The cubic root of 71390498 is about 414.8395334514.

The spelling of 71390498 in words is "seventy-one million, three hundred ninety thousand, four hundred ninety-eight".