34725661 has 2 divisors, whose sum is σ = 34725662. Its totient is φ = 34725660.

The previous prime is 34725643. The next prime is 34725667. The reversal of 34725661 is 16652743.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33860761 + 864900 = 5819^2 + 930^2 .

It is a cyclic number.

It is not a de Polignac number, because 34725661 - 2⁷ = 34725533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34725667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17362830 + 17362831.

It is an arithmetic number, because the mean of its divisors is an integer number (17362831).

Almost surely, 2^34725661 is an apocalyptic number.

It is an amenable number.

34725661 is a deficient number, since it is larger than the sum of its proper divisors (1).

34725661 is an equidigital number, since it uses as much as digits as its factorization.

34725661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 34725661 is about 5892.8482926340. The cubic root of 34725661 is about 326.2497396298.

The spelling of 34725661 in words is "thirty-four million, seven hundred twenty-five thousand, six hundred sixty-one".