30894997 has 4 divisors (see below), whose sum is σ = 35308576. Its totient is φ = 26481420.

The previous prime is 30894989. The next prime is 30895013. The reversal of 30894997 is 79949803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30894997 - 2³ = 30894989 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 30894997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30894917) 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, 2206779 + ... + 2206792.

It is an arithmetic number, because the mean of its divisors is an integer number (8827144).

Almost surely, 2^30894997 is an apocalyptic number.

It is an amenable number.

30894997 is a deficient number, since it is larger than the sum of its proper divisors (4413579).

30894997 is an equidigital number, since it uses as much as digits as its factorization.

30894997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413578.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 30894997 is about 5558.3268165879. The cubic root of 30894997 is about 313.7829818822.

The spelling of 30894997 in words is "thirty million, eight hundred ninety-four thousand, nine hundred ninety-seven".