34293987 has 36 divisors (see below), whose sum is σ = 61321104. Its totient is φ = 18083520.

The previous prime is 34293983. The next prime is 34293997. The reversal of 34293987 is 78939243.

It is a happy number.

It is not a de Polignac number, because 34293987 - 2² = 34293983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34293983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9037 + ... + 12257.

It is an arithmetic number, because the mean of its divisors is an integer number (1703364).

Almost surely, 2^34293987 is an apocalyptic number.

34293987 is a deficient number, since it is larger than the sum of its proper divisors (27027117).

34293987 is a wasteful number, since it uses less digits than its factorization.

34293987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3260 (or 3244 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 34293987 is about 5856.1068125505. The cubic root of 34293987 is about 324.8922309347.

The spelling of 34293987 in words is "thirty-four million, two hundred ninety-three thousand, nine hundred eighty-seven".