34878987 has 48 divisors (see below), whose sum is σ = 60723936. Its totient is φ = 19008000.

The previous prime is 34878983. The next prime is 34878997. The reversal of 34878987 is 78987843.

34878987 is a `hidden beast` number, since 3 + 487 + 89 + 87 = 666.

It is not a de Polignac number, because 34878987 - 2² = 34878983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34878983) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52437 + ... + 53097.

It is an arithmetic number, because the mean of its divisors is an integer number (1265082).

Almost surely, 2^34878987 is an apocalyptic number.

34878987 is a deficient number, since it is larger than the sum of its proper divisors (25844949).

34878987 is a wasteful number, since it uses less digits than its factorization.

34878987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 729 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 34878987 is about 5905.8434621991. The cubic root of 34878987 is about 326.7292037474.

The spelling of 34878987 in words is "thirty-four million, eight hundred seventy-eight thousand, nine hundred eighty-seven".