29901047 has 4 divisors (see below), whose sum is σ = 32619336. Its totient is φ = 27182760.

The previous prime is 29901031. The next prime is 29901061. The reversal of 29901047 is 74010992.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 29901047 - 2⁴ = 29901031 is a prime.

It is a super-2 number, since 2×29901047² = 1788145223392418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29901077) 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, 1359128 + ... + 1359149.

It is an arithmetic number, because the mean of its divisors is an integer number (8154834).

Almost surely, 2^29901047 is an apocalyptic number.

29901047 is a deficient number, since it is larger than the sum of its proper divisors (2718289).

29901047 is a wasteful number, since it uses less digits than its factorization.

29901047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2718288.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 29901047 is about 5468.1849822405. The cubic root of 29901047 is about 310.3812409783.

The spelling of 29901047 in words is "twenty-nine million, nine hundred one thousand, forty-seven".