35873921 has 2 divisors, whose sum is σ = 35873922. Its totient is φ = 35873920.

The previous prime is 35873891. The next prime is 35873923. The reversal of 35873921 is 12937853.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23902321 + 11971600 = 4889^2 + 3460^2 .

It is an emirp because it is prime and its reverse (12937853) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 35873921 - 2⁶ = 35873857 is a prime.

Together with 35873923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (35873923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17936960 + 17936961.

It is an arithmetic number, because the mean of its divisors is an integer number (17936961).

Almost surely, 2^35873921 is an apocalyptic number.

It is an amenable number.

35873921 is a deficient number, since it is larger than the sum of its proper divisors (1).

35873921 is an equidigital number, since it uses as much as digits as its factorization.

35873921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 35873921 is about 5989.4842014985. The cubic root of 35873921 is about 329.8068076436.

The spelling of 35873921 in words is "thirty-five million, eight hundred seventy-three thousand, nine hundred twenty-one".