1630923077 has 16 divisors (see below), whose sum is σ = 1986342912. Its totient is φ = 1308698160.

The previous prime is 1630923061. The next prime is 1630923097. The reversal of 1630923077 is 7703290361.

It is not a de Polignac number, because 1630923077 - 2⁴ = 1630923061 is a prime.

It is a super-2 number, since 2×1630923077² = 5319820166182295858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1630923077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630923097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100199 + ... + 115332.

It is an arithmetic number, because the mean of its divisors is an integer number (124146432).

Almost surely, 2^1630923077 is an apocalyptic number.

It is an amenable number.

1630923077 is a deficient number, since it is larger than the sum of its proper divisors (355419835).

1630923077 is a wasteful number, since it uses less digits than its factorization.

1630923077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215608.

The product of its (nonzero) digits is 47628, while the sum is 38.

The square root of 1630923077 is about 40384.6886455746. The cubic root of 1630923077 is about 1177.0940360919.

The spelling of 1630923077 in words is "one billion, six hundred thirty million, nine hundred twenty-three thousand, seventy-seven".