29648813 has 4 divisors (see below), whose sum is σ = 29662848. Its totient is φ = 29634780.

The previous prime is 29648807. The next prime is 29648851. The reversal of 29648813 is 31884692.

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 29648813 - 2⁸ = 29648557 is a prime.

It is a super-2 number, since 2×29648813² = 1758104224617938, 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 (29648893) 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, 3131 + ... + 8312.

It is an arithmetic number, because the mean of its divisors is an integer number (7415712).

Almost surely, 2^29648813 is an apocalyptic number.

It is an amenable number.

29648813 is a deficient number, since it is larger than the sum of its proper divisors (14035).

29648813 is a wasteful number, since it uses less digits than its factorization.

29648813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14034.

The product of its digits is 82944, while the sum is 41.

The square root of 29648813 is about 5445.0723594825. The cubic root of 29648813 is about 309.5060221554.

The spelling of 29648813 in words is "twenty-nine million, six hundred forty-eight thousand, eight hundred thirteen".