34312987 has 16 divisors (see below), whose sum is σ = 38264832. Its totient is φ = 30602880.

The previous prime is 34312981. The next prime is 34313009. The reversal of 34312987 is 78921343.

It is not a de Polignac number, because 34312987 - 2³ = 34312979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34312981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49312 + ... + 50002.

It is an arithmetic number, because the mean of its divisors is an integer number (2391552).

Almost surely, 2^34312987 is an apocalyptic number.

34312987 is a deficient number, since it is larger than the sum of its proper divisors (3951845).

34312987 is a wasteful number, since it uses less digits than its factorization.

34312987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858.

The product of its digits is 36288, while the sum is 37.

The square root of 34312987 is about 5857.7288260895. The cubic root of 34312987 is about 324.9522201949.

The spelling of 34312987 in words is "thirty-four million, three hundred twelve thousand, nine hundred eighty-seven".