71900489 has 8 divisors (see below), whose sum is σ = 73973952. Its totient is φ = 69853680.

The previous prime is 71900473. The next prime is 71900513. The reversal of 71900489 is 98400917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71900489 - 2⁴ = 71900473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71900419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1127 + ... + 12044.

It is an arithmetic number, because the mean of its divisors is an integer number (9246744).

Almost surely, 2^71900489 is an apocalyptic number.

It is an amenable number.

71900489 is a deficient number, since it is larger than the sum of its proper divisors (2073463).

71900489 is a wasteful number, since it uses less digits than its factorization.

71900489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13327.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 71900489 is about 8479.4156048633. The cubic root of 71900489 is about 415.8250177074.

The spelling of 71900489 in words is "seventy-one million, nine hundred thousand, four hundred eighty-nine".