30630071 has 8 divisors (see below), whose sum is σ = 32632320. Its totient is φ = 28666872.

The previous prime is 30630029. The next prime is 30630091. The reversal of 30630071 is 17003603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30630071 - 2²² = 26435767 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 (30630011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8135 + ... + 11288.

It is an arithmetic number, because the mean of its divisors is an integer number (4079040).

Almost surely, 2^30630071 is an apocalyptic number.

30630071 is a deficient number, since it is larger than the sum of its proper divisors (2002249).

30630071 is a wasteful number, since it uses less digits than its factorization.

30630071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19525.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 30630071 is about 5534.4440551875. Note that the first 3 decimals coincide. The cubic root of 30630071 is about 312.8835048444.

Adding to 30630071 its reverse (17003603), we get a palindrome (47633674).

The spelling of 30630071 in words is "thirty million, six hundred thirty thousand, seventy-one".