86978203 has 8 divisors (see below), whose sum is σ = 97741728. Its totient is φ = 76796544.

The previous prime is 86978197. The next prime is 86978233. The reversal of 86978203 is 30287968.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86978203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86978203.

It is not an unprimeable number, because it can be changed into a prime (86978233) 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, 145150 + ... + 145747.

It is an arithmetic number, because the mean of its divisors is an integer number (12217716).

Almost surely, 2^86978203 is an apocalyptic number.

86978203 is a deficient number, since it is larger than the sum of its proper divisors (10763525).

86978203 is a wasteful number, since it uses less digits than its factorization.

86978203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290933.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 86978203 is about 9326.2105380481. The cubic root of 86978203 is about 443.0677538888.

It can be divided in two parts, 8697 and 8203, that added together give a square (16900 = 130²).

The spelling of 86978203 in words is "eighty-six million, nine hundred seventy-eight thousand, two hundred three".