29931901 has 4 divisors (see below), whose sum is σ = 31233312. Its totient is φ = 28630492.

The previous prime is 29931887. The next prime is 29931943. The reversal of 29931901 is 10913992.

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 not a de Polignac number, because 29931901 - 2⁷ = 29931773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29931961) 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, 650671 + ... + 650716.

It is an arithmetic number, because the mean of its divisors is an integer number (7808328).

Almost surely, 2^29931901 is an apocalyptic number.

It is an amenable number.

29931901 is a deficient number, since it is larger than the sum of its proper divisors (1301411).

29931901 is a wasteful number, since it uses less digits than its factorization.

29931901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301410.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 29931901 is about 5471.0054834555. The cubic root of 29931901 is about 310.4879619993.

The spelling of 29931901 in words is "twenty-nine million, nine hundred thirty-one thousand, nine hundred one".