1961598088 has 8 divisors (see below), whose sum is σ = 3677996430. Its totient is φ = 980799040.

The previous prime is 1961598083. The next prime is 1961598097. The reversal of 1961598088 is 8808951691.

It can be written as a sum of positive squares in only one way, i.e., 1391439204 + 570158884 = 37302^2 + 23878^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1961598083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122599873 + ... + 122599888.

Almost surely, 2^1961598088 is an apocalyptic number.

It is an amenable number.

1961598088 is a deficient number, since it is larger than the sum of its proper divisors (1716398342).

1961598088 is a wasteful number, since it uses less digits than its factorization.

1961598088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245199767 (or 245199763 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 55.

The square root of 1961598088 is about 44289.9321290968. The cubic root of 1961598088 is about 1251.8049844770.

The spelling of 1961598088 in words is "one billion, nine hundred sixty-one million, five hundred ninety-eight thousand, eighty-eight".