34649861 has 4 divisors (see below), whose sum is σ = 34692000. Its totient is φ = 34607724.

The previous prime is 34649843. The next prime is 34649911. The reversal of 34649861 is 16894643.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16894643 = 499 ⋅33857.

It is a cyclic number.

It is not a de Polignac number, because 34649861 - 2¹⁴ = 34633477 is a prime.

It is a super-2 number, since 2×34649861² = 2401225734638642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34649261) 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, 19811 + ... + 21488.

It is an arithmetic number, because the mean of its divisors is an integer number (8673000).

Almost surely, 2^34649861 is an apocalyptic number.

It is an amenable number.

34649861 is a deficient number, since it is larger than the sum of its proper divisors (42139).

34649861 is an equidigital number, since it uses as much as digits as its factorization.

34649861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42138.

The product of its digits is 124416, while the sum is 41.

The square root of 34649861 is about 5886.4132542661. The cubic root of 34649861 is about 326.0121847981.

The spelling of 34649861 in words is "thirty-four million, six hundred forty-nine thousand, eight hundred sixty-one".