893137649 has 16 divisors (see below), whose sum is σ = 926314752. Its totient is φ = 860606208.

The previous prime is 893137643. The next prime is 893137657. The reversal of 893137649 is 946731398.

893137649 = 2567² + 2568² + ... + 2695².

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-893137649 is a prime.

It is a super-2 number, since 2×893137649² = 1595389720122494402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 893137597 and 893137606.

It is not an unprimeable number, because it can be changed into a prime (893137643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1928792 + ... + 1929254.

It is an arithmetic number, because the mean of its divisors is an integer number (57894672).

Almost surely, 2^893137649 is an apocalyptic number.

It is an amenable number.

893137649 is a deficient number, since it is larger than the sum of its proper divisors (33177103).

893137649 is a wasteful number, since it uses less digits than its factorization.

893137649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016.

The product of its digits is 979776, while the sum is 50.

The square root of 893137649 is about 29885.4086302998. The cubic root of 893137649 is about 963.0292222883.

The spelling of 893137649 in words is "eight hundred ninety-three million, one hundred thirty-seven thousand, six hundred forty-nine".