30897100 has 36 divisors (see below), whose sum is σ = 72207184. Its totient is φ = 11407680.

The previous prime is 30897089. The next prime is 30897107. The reversal of 30897100 is 179803.

It is not an unprimeable number, because it can be changed into a prime (30897107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10584 + ... + 13183.

Almost surely, 2^30897100 is an apocalyptic number.

It is an amenable number.

30897100 is an abundant number, since it is smaller than the sum of its proper divisors (41310084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30897100 is a wasteful number, since it uses less digits than its factorization.

30897100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23794 (or 23787 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 30897100 is about 5558.5159890028. The cubic root of 30897100 is about 313.7901013805.

It can be divided in two parts, 30 and 897100, that added together give a triangular number (897130 = T₁₃₃₉).

The spelling of 30897100 in words is "thirty million, eight hundred ninety-seven thousand, one hundred".