67923953 has 2 divisors, whose sum is σ = 67923954. Its totient is φ = 67923952.

The previous prime is 67923949. The next prime is 67923967. The reversal of 67923953 is 35932976.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38850289 + 29073664 = 6233^2 + 5392^2 .

It is a cyclic number.

It is not a de Polignac number, because 67923953 - 2² = 67923949 is a prime.

It is a super-2 number, since 2×67923953² = 9227326782292418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67923913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33961976 + 33961977.

It is an arithmetic number, because the mean of its divisors is an integer number (33961977).

Almost surely, 2^67923953 is an apocalyptic number.

It is an amenable number.

67923953 is a deficient number, since it is larger than the sum of its proper divisors (1).

67923953 is an equidigital number, since it uses as much as digits as its factorization.

67923953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 44.

The square root of 67923953 is about 8241.5989346728. The cubic root of 67923953 is about 408.0132977372.

The spelling of 67923953 in words is "sixty-seven million, nine hundred twenty-three thousand, nine hundred fifty-three".