30861901 has 8 divisors (see below), whose sum is σ = 35311680. Its totient is φ = 26422368.

The previous prime is 30861899. The next prime is 30861937. The reversal of 30861901 is 10916803.

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 30861901 - 2¹ = 30861899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30861901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30862901) 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, 5670 + ... + 9688.

It is an arithmetic number, because the mean of its divisors is an integer number (4413960).

Almost surely, 2^30861901 is an apocalyptic number.

It is an amenable number.

30861901 is a deficient number, since it is larger than the sum of its proper divisors (4449779).

30861901 is a wasteful number, since it uses less digits than its factorization.

30861901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 30861901 is about 5555.3488639328. The cubic root of 30861901 is about 313.6708960749.

The spelling of 30861901 in words is "thirty million, eight hundred sixty-one thousand, nine hundred one".