914820649 has 4 divisors (see below), whose sum is σ = 914939280. Its totient is φ = 914702020.

The previous prime is 914820629. The next prime is 914820661. The reversal of 914820649 is 946028419.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 946028419 = 7 ⋅135146917.

It is a cyclic number.

It is not a de Polignac number, because 914820649 - 2⁷ = 914820521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (914820619) 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, 46879 + ... + 63460.

It is an arithmetic number, because the mean of its divisors is an integer number (228734820).

Almost surely, 2^914820649 is an apocalyptic number.

It is an amenable number.

914820649 is a deficient number, since it is larger than the sum of its proper divisors (118631).

914820649 is a wasteful number, since it uses less digits than its factorization.

914820649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118630.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 914820649 is about 30246.0021986378. The cubic root of 914820649 is about 970.7602531706.

The spelling of 914820649 in words is "nine hundred fourteen million, eight hundred twenty thousand, six hundred forty-nine".