920001029 has 4 divisors (see below), whose sum is σ = 920146284. Its totient is φ = 919855776.

The previous prime is 920001023. The next prime is 920001097. The reversal of 920001029 is 920100029.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 250588900 + 669412129 = 15830^2 + 25873^2 .

It is a cyclic number.

It is not a de Polignac number, because 920001029 - 2⁸ = 920000773 is a prime.

It is a super-2 number, since 2×920001029² = 1692803786722117682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 920000995 and 920001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920001023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62672 + ... + 75945.

It is an arithmetic number, because the mean of its divisors is an integer number (230036571).

Almost surely, 2^920001029 is an apocalyptic number.

It is an amenable number.

920001029 is a deficient number, since it is larger than the sum of its proper divisors (145255).

920001029 is a wasteful number, since it uses less digits than its factorization.

920001029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145254.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 920001029 is about 30331.5187387641. The cubic root of 920001029 is about 972.5891888252.

The spelling of 920001029 in words is "nine hundred twenty million, one thousand, twenty-nine".