30678001 has 2 divisors, whose sum is σ = 30678002. Its totient is φ = 30678000.

The previous prime is 30677971. The next prime is 30678007. The reversal of 30678001 is 10087603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26368225 + 4309776 = 5135^2 + 2076^2 .

It is an emirp because it is prime and its reverse (10087603) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30678001 - 2⁷ = 30677873 is a prime.

It is a super-2 number, since 2×30678001² = 1882279490712002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30678007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15339000 + 15339001.

It is an arithmetic number, because the mean of its divisors is an integer number (15339001).

Almost surely, 2^30678001 is an apocalyptic number.

It is an amenable number.

30678001 is a deficient number, since it is larger than the sum of its proper divisors (1).

30678001 is an equidigital number, since it uses as much as digits as its factorization.

30678001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 30678001 is about 5538.7725174446. The cubic root of 30678001 is about 313.0466200500.

The spelling of 30678001 in words is "thirty million, six hundred seventy-eight thousand, one".