29921061 has 8 divisors (see below), whose sum is σ = 40490464. Its totient is φ = 19649520.

The previous prime is 29921057. The next prime is 29921063. The reversal of 29921061 is 16012992.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29921061 - 2² = 29921057 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 (29921063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74230 + ... + 74631.

It is an arithmetic number, because the mean of its divisors is an integer number (5061308).

Almost surely, 2^29921061 is an apocalyptic number.

It is an amenable number.

29921061 is a deficient number, since it is larger than the sum of its proper divisors (10569403).

29921061 is a wasteful number, since it uses less digits than its factorization.

29921061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148931.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 29921061 is about 5470.0147166164. The cubic root of 29921061 is about 310.4504758415.

The spelling of 29921061 in words is "twenty-nine million, nine hundred twenty-one thousand, sixty-one".