961403 has 4 divisors (see below), whose sum is σ = 992448. Its totient is φ = 930360.

The previous prime is 961399. The next prime is 961427. The reversal of 961403 is 304169.

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 961403 - 2² = 961399 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961403.

It is not an unprimeable number, because it can be changed into a prime (961453) 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, 15476 + ... + 15537.

It is an arithmetic number, because the mean of its divisors is an integer number (248112).

2⁹⁶¹⁴⁰³ is an apocalyptic number.

961403 is a deficient number, since it is larger than the sum of its proper divisors (31045).

961403 is a wasteful number, since it uses less digits than its factorization.

961403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31044.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 961403 is about 980.5116011552. The cubic root of 961403 is about 98.6965164637.

It can be divided in two parts, 96140 and 3, that multiplied together give a triangular number (288420 = T₇₅₉).

The spelling of 961403 in words is "nine hundred sixty-one thousand, four hundred three".