694979801 has 2 divisors, whose sum is σ = 694979802. Its totient is φ = 694979800.

The previous prime is 694979743. The next prime is 694979819. The reversal of 694979801 is 108979496.

It is a happy number.

694979801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 539354176 + 155625625 = 23224^2 + 12475^2 .

It is a cyclic number.

It is not a de Polignac number, because 694979801 - 2²⁶ = 627870937 is a prime.

It is not a weakly prime, because it can be changed into another prime (694979401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347489900 + 347489901.

It is an arithmetic number, because the mean of its divisors is an integer number (347489901).

Almost surely, 2^694979801 is an apocalyptic number.

It is an amenable number.

694979801 is a deficient number, since it is larger than the sum of its proper divisors (1).

694979801 is an equidigital number, since it uses as much as digits as its factorization.

694979801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 694979801 is about 26362.4695542736. The cubic root of 694979801 is about 885.7763096933.

The spelling of 694979801 in words is "six hundred ninety-four million, nine hundred seventy-nine thousand, eight hundred one".