34878949 has 4 divisors (see below), whose sum is σ = 39861664. Its totient is φ = 29896236.

The previous prime is 34878941. The next prime is 34878959. The reversal of 34878949 is 94987843.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34878949 - 2³ = 34878941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34878896 and 34878905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34878941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2491347 + ... + 2491360.

It is an arithmetic number, because the mean of its divisors is an integer number (9965416).

Almost surely, 2^34878949 is an apocalyptic number.

It is an amenable number.

34878949 is a deficient number, since it is larger than the sum of its proper divisors (4982715).

34878949 is an equidigital number, since it uses as much as digits as its factorization.

34878949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982714.

The product of its digits is 1741824, while the sum is 52.

The square root of 34878949 is about 5905.8402450456. The cubic root of 34878949 is about 326.7290850923.

It can be divided in two parts, 348 and 78949, that added together give a palindrome (79297).

The spelling of 34878949 in words is "thirty-four million, eight hundred seventy-eight thousand, nine hundred forty-nine".