29797990 has 16 divisors (see below), whose sum is σ = 54393120. Its totient is φ = 11751040.

The previous prime is 29797973. The next prime is 29798017. The reversal of 29797990 is 9979792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20275 + ... + 21694.

It is an arithmetic number, because the mean of its divisors is an integer number (3399570).

Almost surely, 2^29797990 is an apocalyptic number.

29797990 is a deficient number, since it is larger than the sum of its proper divisors (24595130).

29797990 is a wasteful number, since it uses less digits than its factorization.

29797990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42047.

The product of its (nonzero) digits is 642978, while the sum is 52.

The square root of 29797990 is about 5458.7535207225. The cubic root of 29797990 is about 310.0242436815.

The spelling of 29797990 in words is "twenty-nine million, seven hundred ninety-seven thousand, nine hundred ninety".