87890357 has 8 divisors (see below), whose sum is σ = 93151296. Its totient is φ = 82639552.

The previous prime is 87890339. The next prime is 87890359. The reversal of 87890357 is 75309878.

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 87890357 - 2¹⁸ = 87628213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87890359) 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, 22448 + ... + 26070.

It is an arithmetic number, because the mean of its divisors is an integer number (11643912).

Almost surely, 2^87890357 is an apocalyptic number.

It is an amenable number.

87890357 is a deficient number, since it is larger than the sum of its proper divisors (5260939).

87890357 is a wasteful number, since it uses less digits than its factorization.

87890357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5067.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 87890357 is about 9374.9857066558. The cubic root of 87890357 is about 444.6112111509.

The spelling of 87890357 in words is "eighty-seven million, eight hundred ninety thousand, three hundred fifty-seven".