30899061 has 6 divisors (see below), whose sum is σ = 44631990. Its totient is φ = 20599368.

The previous prime is 30899039. The next prime is 30899083. The reversal of 30899061 is 16099803.

It is an interprime number because it is at equal distance from previous prime (30899039) and next prime (30899083).

It can be written as a sum of positive squares in only one way, i.e., 20304036 + 10595025 = 4506^2 + 3255^2 .

It is not a de Polignac number, because 30899061 - 2¹³ = 30890869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30899021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1716606 + ... + 1716623.

It is an arithmetic number, because the mean of its divisors is an integer number (7438665).

Almost surely, 2^30899061 is an apocalyptic number.

It is an amenable number.

30899061 is a deficient number, since it is larger than the sum of its proper divisors (13732929).

30899061 is a wasteful number, since it uses less digits than its factorization.

30899061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433235 (or 3433232 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 30899061 is about 5558.6923822064. The cubic root of 30899061 is about 313.7967398609.

The spelling of 30899061 in words is "thirty million, eight hundred ninety-nine thousand, sixty-one".