30630623 has 2 divisors, whose sum is σ = 30630624. Its totient is φ = 30630622.

The previous prime is 30630619. The next prime is 30630629. The reversal of 30630623 is 32603603.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30630623 - 2² = 30630619 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30630629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15315311 + 15315312.

It is an arithmetic number, because the mean of its divisors is an integer number (15315312).

Almost surely, 2^30630623 is an apocalyptic number.

30630623 is a deficient number, since it is larger than the sum of its proper divisors (1).

30630623 is an equidigital number, since it uses as much as digits as its factorization.

30630623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 30630623 is about 5534.4939244704. The cubic root of 30630623 is about 312.8853843771.

The spelling of 30630623 in words is "thirty million, six hundred thirty thousand, six hundred twenty-three".