961247 has 4 divisors (see below), whose sum is σ = 1098576. Its totient is φ = 823920.

The previous prime is 961243. The next prime is 961273. The reversal of 961247 is 742169.

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

It is a cyclic number.

It is not a de Polignac number, because 961247 - 2² = 961243 is a prime.

It is a d-powerful number, because it can be written as 9⁴ + 6 + 2¹⁷ + 1 + 4³ + 7⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961241) 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, 68654 + ... + 68667.

It is an arithmetic number, because the mean of its divisors is an integer number (274644).

2⁹⁶¹²⁴⁷ is an apocalyptic number.

961247 is a deficient number, since it is larger than the sum of its proper divisors (137329).

961247 is a wasteful number, since it uses less digits than its factorization.

961247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137328.

The product of its digits is 3024, while the sum is 29.

The square root of 961247 is about 980.4320476198. The cubic root of 961247 is about 98.6911779152.

The spelling of 961247 in words is "nine hundred sixty-one thousand, two hundred forty-seven".