35968421 has 4 divisors (see below), whose sum is σ = 35982732. Its totient is φ = 35954112.

The previous prime is 35968417. The next prime is 35968441. The reversal of 35968421 is 12486953.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12486953 = 23 ⋅542911.

It can be written as a sum of positive squares in 2 ways, for example, as 24611521 + 11356900 = 4961^2 + 3370^2 .

It is a cyclic number.

It is not a de Polignac number, because 35968421 - 2² = 35968417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35968411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276 + ... + 8781.

It is an arithmetic number, because the mean of its divisors is an integer number (8995683).

Almost surely, 2^35968421 is an apocalyptic number.

It is an amenable number.

35968421 is a deficient number, since it is larger than the sum of its proper divisors (14311).

35968421 is a wasteful number, since it uses less digits than its factorization.

35968421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14310.

The product of its digits is 51840, while the sum is 38.

The square root of 35968421 is about 5997.3678393108. The cubic root of 35968421 is about 330.0961489040.

The spelling of 35968421 in words is "thirty-five million, nine hundred sixty-eight thousand, four hundred twenty-one".