30495473 has 4 divisors (see below), whose sum is σ = 30632448. Its totient is φ = 30358500.

The previous prime is 30495461. The next prime is 30495481. The reversal of 30495473 is 37459403.

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 30495473 - 2⁴ = 30495457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30495173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68153 + ... + 68598.

It is an arithmetic number, because the mean of its divisors is an integer number (7658112).

Almost surely, 2^30495473 is an apocalyptic number.

It is an amenable number.

30495473 is a deficient number, since it is larger than the sum of its proper divisors (136975).

30495473 is a wasteful number, since it uses less digits than its factorization.

30495473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136974.

The product of its (nonzero) digits is 45360, while the sum is 35.

The square root of 30495473 is about 5522.2706380618. The cubic root of 30495473 is about 312.4245296150.

The spelling of 30495473 in words is "thirty million, four hundred ninety-five thousand, four hundred seventy-three".