690414601 has 2 divisors, whose sum is σ = 690414602. Its totient is φ = 690414600.

The previous prime is 690414589. The next prime is 690414661. The reversal of 690414601 is 106414096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 689115001 + 1299600 = 26251^2 + 1140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-690414601 is a prime.

It is not a weakly prime, because it can be changed into another prime (690414661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345207300 + 345207301.

It is an arithmetic number, because the mean of its divisors is an integer number (345207301).

Almost surely, 2^690414601 is an apocalyptic number.

It is an amenable number.

690414601 is a deficient number, since it is larger than the sum of its proper divisors (1).

690414601 is an equidigital number, since it uses as much as digits as its factorization.

690414601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 690414601 is about 26275.7416831571. The cubic root of 690414601 is about 883.8325444807.

Adding to 690414601 its reverse (106414096), we get a palindrome (796828697).

The spelling of 690414601 in words is "six hundred ninety million, four hundred fourteen thousand, six hundred one".