913949 has 4 divisors (see below), whose sum is σ = 923100. Its totient is φ = 904800.

The previous prime is 913943. The next prime is 913981. The reversal of 913949 is 949319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949319 = 7 ⋅135617.

It can be written as a sum of positive squares in 2 ways, for example, as 828100 + 85849 = 910^2 + 293^2 .

It is a cyclic number.

It is not a de Polignac number, because 913949 - 2⁴ = 913933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 913949.

It is not an unprimeable number, because it can be changed into a prime (913943) 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, 4424 + ... + 4625.

It is an arithmetic number, because the mean of its divisors is an integer number (230775).

2⁹¹³⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

913949 is a deficient number, since it is larger than the sum of its proper divisors (9151).

913949 is a wasteful number, since it uses less digits than its factorization.

913949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9150.

The product of its digits is 8748, while the sum is 35.

The square root of 913949 is about 956.0067991390. The cubic root of 913949 is about 97.0451838951.

The spelling of 913949 in words is "nine hundred thirteen thousand, nine hundred forty-nine".