29977950 has 24 divisors (see below), whose sum is σ = 74345688. Its totient is φ = 7994080.

The previous prime is 29977949. The next prime is 29977979. The reversal of 29977950 is 5977992.

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 29977950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99777 + ... + 100076.

It is an arithmetic number, because the mean of its divisors is an integer number (3097737).

Almost surely, 2^29977950 is an apocalyptic number.

29977950 is an abundant number, since it is smaller than the sum of its proper divisors (44367738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29977950 is a wasteful number, since it uses less digits than its factorization.

29977950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199868 (or 199863 counting only the distinct ones).

The product of its (nonzero) digits is 357210, while the sum is 48.

The square root of 29977950 is about 5475.2123246501. The cubic root of 29977950 is about 310.6471047402.

The spelling of 29977950 in words is "twenty-nine million, nine hundred seventy-seven thousand, nine hundred fifty".