29686949 has 4 divisors (see below), whose sum is σ = 31249440. Its totient is φ = 28124460.

The previous prime is 29686927. The next prime is 29686957. The reversal of 29686949 is 94968692.

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 29686949 - 2¹² = 29682853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29686949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29686919) 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, 781217 + ... + 781254.

It is an arithmetic number, because the mean of its divisors is an integer number (7812360).

Almost surely, 2^29686949 is an apocalyptic number.

It is an amenable number.

29686949 is a deficient number, since it is larger than the sum of its proper divisors (1562491).

29686949 is a wasteful number, since it uses less digits than its factorization.

29686949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562490.

The product of its digits is 1679616, while the sum is 53.

The square root of 29686949 is about 5448.5731159635. The cubic root of 29686949 is about 309.6386667526.

The spelling of 29686949 in words is "twenty-nine million, six hundred eighty-six thousand, nine hundred forty-nine".