653641429 has 6 divisors (see below), whose sum is σ = 760358454. Its totient is φ = 560264040.

The previous prime is 653641427. The next prime is 653641459. The reversal of 653641429 is 924146356.

It can be written as a sum of positive squares in only one way, i.e., 579509329 + 74132100 = 24073^2 + 8610^2 .

It is not a de Polignac number, because 653641429 - 2¹ = 653641427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 653641391 and 653641400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653641427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6669762 + ... + 6669859.

It is an arithmetic number, because the mean of its divisors is an integer number (126726409).

Almost surely, 2^653641429 is an apocalyptic number.

It is an amenable number.

653641429 is a deficient number, since it is larger than the sum of its proper divisors (106717025).

653641429 is a wasteful number, since it uses less digits than its factorization.

653641429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13339635 (or 13339628 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 653641429 is about 25566.4121260688. The cubic root of 653641429 is about 867.8537084361.

The spelling of 653641429 in words is "six hundred fifty-three million, six hundred forty-one thousand, four hundred twenty-nine".