213419987 has 8 divisors (see below), whose sum is σ = 232943040. Its totient is φ = 193917160.

The previous prime is 213419981. The next prime is 213419993. The reversal of 213419987 is 789914312.

It is an interprime number because it is at equal distance from previous prime (213419981) and next prime (213419993).

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 213419987 - 2¹⁶ = 213354451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213419981) 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, 24608 + ... + 32130.

It is an arithmetic number, because the mean of its divisors is an integer number (29117880).

Almost surely, 2^213419987 is an apocalyptic number.

213419987 is a deficient number, since it is larger than the sum of its proper divisors (19523053).

213419987 is a wasteful number, since it uses less digits than its factorization.

213419987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10113.

The product of its digits is 108864, while the sum is 44.

The square root of 213419987 is about 14608.9009511325. The cubic root of 213419987 is about 597.6015240381.

The spelling of 213419987 in words is "two hundred thirteen million, four hundred nineteen thousand, nine hundred eighty-seven".