991062622 has 16 divisors (see below), whose sum is σ = 1674054144. Its totient is φ = 435951000.

The previous prime is 991062607. The next prime is 991062641. The reversal of 991062622 is 226260199.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725904 + ... + 727267.

It is an arithmetic number, because the mean of its divisors is an integer number (104628384).

Almost surely, 2^991062622 is an apocalyptic number.

991062622 is a deficient number, since it is larger than the sum of its proper divisors (682991522).

991062622 is a wasteful number, since it uses less digits than its factorization.

991062622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453215.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 991062622 is about 31481.1470883766. The cubic root of 991062622 is about 997.0119544768.

The spelling of 991062622 in words is "nine hundred ninety-one million, sixty-two thousand, six hundred twenty-two".