30497071 has 16 divisors (see below), whose sum is σ = 35884800. Its totient is φ = 25617600.

The previous prime is 30497069. The next prime is 30497107. The reversal of 30497071 is 17079403.

It is a cyclic number.

It is not a de Polignac number, because 30497071 - 2¹ = 30497069 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 (30497671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6790 + ... + 10348.

It is an arithmetic number, because the mean of its divisors is an integer number (2242800).

Almost surely, 2^30497071 is an apocalyptic number.

30497071 is a deficient number, since it is larger than the sum of its proper divisors (5387729).

30497071 is a wasteful number, since it uses less digits than its factorization.

30497071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 30497071 is about 5522.4153230267. The cubic root of 30497071 is about 312.4299866619.

The spelling of 30497071 in words is "thirty million, four hundred ninety-seven thousand, seventy-one".