872354649 has 16 divisors (see below), whose sum is σ = 1214410752. Its totient is φ = 555963408.

The previous prime is 872354627. The next prime is 872354653. The reversal of 872354649 is 946453278.

It is not a de Polignac number, because 872354649 - 2¹³ = 872346457 is a prime.

It is a super-2 number, since 2×872354649² = 1522005267263826402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 872354598 and 872354607.

It is not an unprimeable number, because it can be changed into a prime (872354669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193944 + ... + 198390.

It is an arithmetic number, because the mean of its divisors is an integer number (75900672).

Almost surely, 2^872354649 is an apocalyptic number.

It is an amenable number.

872354649 is a deficient number, since it is larger than the sum of its proper divisors (342056103).

872354649 is a wasteful number, since it uses less digits than its factorization.

872354649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7316.

The product of its digits is 1451520, while the sum is 48.

The square root of 872354649 is about 29535.6504753154. The cubic root of 872354649 is about 955.5007375565.

The spelling of 872354649 in words is "eight hundred seventy-two million, three hundred fifty-four thousand, six hundred forty-nine".