1029798653 has 8 divisors (see below), whose sum is σ = 1115657088. Its totient is φ = 944889264.

The previous prime is 1029798617. The next prime is 1029798673. The reversal of 1029798653 is 3568979201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1029798653 - 2⁸ = 1029798397 is a prime.

It is a super-2 number, since 2×1029798653² = 2120970531441228818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029798673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235001 + ... + 239342.

It is an arithmetic number, because the mean of its divisors is an integer number (139457136).

Almost surely, 2^1029798653 is an apocalyptic number.

1029798653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1029798653 is a deficient number, since it is larger than the sum of its proper divisors (85858435).

1029798653 is a wasteful number, since it uses less digits than its factorization.

1029798653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474523.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 1029798653 is about 32090.4760481985. The cubic root of 1029798653 is about 1009.8358237213.

The spelling of 1029798653 in words is "one billion, twenty-nine million, seven hundred ninety-eight thousand, six hundred fifty-three".