919683949 has 2 divisors, whose sum is σ = 919683950. Its totient is φ = 919683948.

The previous prime is 919683943. The next prime is 919683953. The reversal of 919683949 is 949386919.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 917181225 + 2502724 = 30285^2 + 1582^2 .

It is a cyclic number.

It is not a de Polignac number, because 919683949 - 2⁹ = 919683437 is a prime.

It is a super-3 number, since 3×919683949³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 919683893 and 919683902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (919683943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459841974 + 459841975.

It is an arithmetic number, because the mean of its divisors is an integer number (459841975).

Almost surely, 2^919683949 is an apocalyptic number.

It is an amenable number.

919683949 is a deficient number, since it is larger than the sum of its proper divisors (1).

919683949 is an equidigital number, since it uses as much as digits as its factorization.

919683949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 58.

The square root of 919683949 is about 30326.2913822314. The cubic root of 919683949 is about 972.4774411184.

The spelling of 919683949 in words is "nine hundred nineteen million, six hundred eighty-three thousand, nine hundred forty-nine".