30036729 has 16 divisors (see below), whose sum is σ = 40727232. Its totient is φ = 19688448.

The previous prime is 30036709. The next prime is 30036749. The reversal of 30036729 is 92763003.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30036709) and next prime (30036749).

It is not a de Polignac number, because 30036729 - 2⁵ = 30036697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30036696 and 30036705.

It is not an unprimeable number, because it can be changed into a prime (30036709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67582 + ... + 68024.

It is an arithmetic number, because the mean of its divisors is an integer number (2545452).

Almost surely, 2^30036729 is an apocalyptic number.

It is an amenable number.

30036729 is a deficient number, since it is larger than the sum of its proper divisors (10690503).

30036729 is a wasteful number, since it uses less digits than its factorization.

30036729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 30036729 is about 5480.5774330813. The cubic root of 30036729 is about 310.8500050395.

The spelling of 30036729 in words is "thirty million, thirty-six thousand, seven hundred twenty-nine".