846379649 has 4 divisors (see below), whose sum is σ = 850075860. Its totient is φ = 842683440.

The previous prime is 846379607. The next prime is 846379661. The reversal of 846379649 is 946973648.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 723879025 + 122500624 = 26905^2 + 11068^2 .

It is a cyclic number.

It is not a de Polignac number, because 846379649 - 2⁸ = 846379393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 846379594 and 846379603.

It is not an unprimeable number, because it can be changed into a prime (846379049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1847762 + ... + 1848219.

It is an arithmetic number, because the mean of its divisors is an integer number (212518965).

Almost surely, 2^846379649 is an apocalyptic number.

It is an amenable number.

846379649 is a deficient number, since it is larger than the sum of its proper divisors (3696211).

846379649 is a wasteful number, since it uses less digits than its factorization.

846379649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3696210.

The product of its digits is 7838208, while the sum is 56.

The square root of 846379649 is about 29092.6047132257. The cubic root of 846379649 is about 945.9214434602.

The spelling of 846379649 in words is "eight hundred forty-six million, three hundred seventy-nine thousand, six hundred forty-nine".