29528991 has 12 divisors (see below), whose sum is σ = 42847168. Its totient is φ = 19596384.

The previous prime is 29528981. The next prime is 29529029. The reversal of 29528991 is 19982592.

It is not a de Polignac number, because 29528991 - 2⁵ = 29528959 is a prime.

It is a super-2 number, since 2×29528991² = 1743922618956162, 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 (29528981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5350 + ... + 9363.

Almost surely, 2^29528991 is an apocalyptic number.

29528991 is a deficient number, since it is larger than the sum of its proper divisors (13318177).

29528991 is a wasteful number, since it uses less digits than its factorization.

29528991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14942 (or 14939 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 29528991 is about 5434.0584280996. The cubic root of 29528991 is about 309.0885158172.

The spelling of 29528991 in words is "twenty-nine million, five hundred twenty-eight thousand, nine hundred ninety-one".