1000550977 has 2 divisors, whose sum is σ = 1000550978. Its totient is φ = 1000550976.

The previous prime is 1000550951. The next prime is 1000551049. The reversal of 1000550977 is 7790550001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 813162256 + 187388721 = 28516^2 + 13689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000550977 is a prime.

It is a super-2 number, since 2×1000550977² = 2002204515151309058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1000550917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500275488 + 500275489.

It is an arithmetic number, because the mean of its divisors is an integer number (500275489).

Almost surely, 2^1000550977 is an apocalyptic number.

It is an amenable number.

1000550977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000550977 is an equidigital number, since it uses as much as digits as its factorization.

1000550977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11025, while the sum is 34.

The square root of 1000550977 is about 31631.4871133180. The cubic root of 1000550977 is about 1000.1836252797.

The spelling of 1000550977 in words is "one billion, five hundred fifty thousand, nine hundred seventy-seven".