69890487 has 8 divisors (see below), whose sum is σ = 93255936. Its totient is φ = 46559352.

The previous prime is 69890467. The next prime is 69890489. The reversal of 69890487 is 78409896.

It is a happy number.

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

It is not a de Polignac number, because 69890487 - 2⁶ = 69890423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69890489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3373 + ... + 12294.

It is an arithmetic number, because the mean of its divisors is an integer number (11656992).

Almost surely, 2^69890487 is an apocalyptic number.

69890487 is a deficient number, since it is larger than the sum of its proper divisors (23365449).

69890487 is a wasteful number, since it uses less digits than its factorization.

69890487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17157.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 69890487 is about 8360.0530500709. The cubic root of 69890487 is about 411.9134967007.

The spelling of 69890487 in words is "sixty-nine million, eight hundred ninety thousand, four hundred eighty-seven".