675381949 has 12 divisors (see below), whose sum is σ = 743595552. Its totient is φ = 612963560.

The previous prime is 675381937. The next prime is 675381953. The reversal of 675381949 is 949183576.

It is a happy number.

It is not a de Polignac number, because 675381949 - 2¹⁹ = 674857661 is a prime.

It is a super-2 number, since 2×675381949² = 912281554070077202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 675381896 and 675381905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675381919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73974 + ... + 82600.

It is an arithmetic number, because the mean of its divisors is an integer number (61966296).

Almost surely, 2^675381949 is an apocalyptic number.

It is an amenable number.

675381949 is a deficient number, since it is larger than the sum of its proper divisors (68213603).

675381949 is a wasteful number, since it uses less digits than its factorization.

675381949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9296 (or 9285 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 52.

The square root of 675381949 is about 25988.1116859229. Note that the first 3 decimals coincide. The cubic root of 675381949 is about 877.3707459180.

The spelling of 675381949 in words is "six hundred seventy-five million, three hundred eighty-one thousand, nine hundred forty-nine".