961007623 has 4 divisors (see below), whose sum is σ = 986980840. Its totient is φ = 935034408.

The previous prime is 961007591. The next prime is 961007629. The reversal of 961007623 is 326700169.

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 961007623 - 2⁵ = 961007591 is a prime.

It is a super-2 number, since 2×961007623² = 1847071302928220258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (961007629) 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, 12986553 + ... + 12986626.

It is an arithmetic number, because the mean of its divisors is an integer number (246745210).

Almost surely, 2^961007623 is an apocalyptic number.

961007623 is a deficient number, since it is larger than the sum of its proper divisors (25973217).

961007623 is a wasteful number, since it uses less digits than its factorization.

961007623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25973216.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 961007623 is about 31000.1229513691. The cubic root of 961007623 is about 986.8298496053.

The spelling of 961007623 in words is "nine hundred sixty-one million, seven thousand, six hundred twenty-three".