30748969 has 4 divisors (see below), whose sum is σ = 30767760. Its totient is φ = 30730180.

The previous prime is 30748967. The next prime is 30748979. The reversal of 30748969 is 96984703.

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 a cyclic number.

It is not a de Polignac number, because 30748969 - 2¹ = 30748967 is a prime.

It is a super-2 number, since 2×30748969² = 1890998189125922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30748967) 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, 6679 + ... + 10300.

It is an arithmetic number, because the mean of its divisors is an integer number (7691940).

Almost surely, 2^30748969 is an apocalyptic number.

It is an amenable number.

30748969 is a deficient number, since it is larger than the sum of its proper divisors (18791).

30748969 is a wasteful number, since it uses less digits than its factorization.

30748969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18790.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 30748969 is about 5545.1752902861. The cubic root of 30748969 is about 313.2878263724.

The spelling of 30748969 in words is "thirty million, seven hundred forty-eight thousand, nine hundred sixty-nine".