30461797 has 4 divisors (see below), whose sum is σ = 30509100. Its totient is φ = 30414496.

The previous prime is 30461789. The next prime is 30461801. The reversal of 30461797 is 79716403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13147876 + 17313921 = 3626^2 + 4161^2 .

It is a cyclic number.

It is not a de Polignac number, because 30461797 - 2³ = 30461789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30461737) 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, 22672 + ... + 23977.

It is an arithmetic number, because the mean of its divisors is an integer number (7627275).

Almost surely, 2^30461797 is an apocalyptic number.

It is an amenable number.

30461797 is a deficient number, since it is larger than the sum of its proper divisors (47303).

30461797 is an equidigital number, since it uses as much as digits as its factorization.

30461797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47302.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 30461797 is about 5519.2206877421. The cubic root of 30461797 is about 312.3094843023.

The spelling of 30461797 in words is "thirty million, four hundred sixty-one thousand, seven hundred ninety-seven".