29977953 has 16 divisors (see below), whose sum is σ = 44550720. Its totient is φ = 17819136.

The previous prime is 29977949. The next prime is 29977979. The reversal of 29977953 is 35977992.

It is a happy number.

It is not a de Polignac number, because 29977953 - 2² = 29977949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 29977896 and 29977905.

It is not an unprimeable number, because it can be changed into a prime (29977903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14500 + ... + 16437.

It is an arithmetic number, because the mean of its divisors is an integer number (2784420).

Almost surely, 2^29977953 is an apocalyptic number.

It is an amenable number.

29977953 is a deficient number, since it is larger than the sum of its proper divisors (14572767).

29977953 is a wasteful number, since it uses less digits than its factorization.

29977953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30976.

The product of its digits is 1071630, while the sum is 51.

The square root of 29977953 is about 5475.2125986120. The cubic root of 29977953 is about 310.6471151027.

The spelling of 29977953 in words is "twenty-nine million, nine hundred seventy-seven thousand, nine hundred fifty-three".