29481953 has 4 divisors (see below), whose sum is σ = 29582868. Its totient is φ = 29381040.

The previous prime is 29481919. The next prime is 29481967. The reversal of 29481953 is 35918492.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27541504 + 1940449 = 5248^2 + 1393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29481953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 29481953.

It is not an unprimeable number, because it can be changed into a prime (29481913) 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, 50018 + ... + 50603.

It is an arithmetic number, because the mean of its divisors is an integer number (7395717).

Almost surely, 2^29481953 is an apocalyptic number.

It is an amenable number.

29481953 is a deficient number, since it is larger than the sum of its proper divisors (100915).

29481953 is a wasteful number, since it uses less digits than its factorization.

29481953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100914.

The product of its digits is 77760, while the sum is 41.

The square root of 29481953 is about 5429.7286304198. The cubic root of 29481953 is about 308.9243084644.

The spelling of 29481953 in words is "twenty-nine million, four hundred eighty-one thousand, nine hundred fifty-three".