429476981 has 8 divisors (see below), whose sum is σ = 432456024. Its totient is φ = 426504960.

The previous prime is 429476977. The next prime is 429477011. The reversal of 429476981 is 189674924.

It can be written as a sum of positive squares in 4 ways, for example, as 46922500 + 382554481 = 6850^2 + 19559^2 .

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 429476981 - 2² = 429476977 is a prime.

It is a super-2 number, since 2×429476981² = 368900954417748722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (429476381) 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, 185825 + ... + 188121.

It is an arithmetic number, because the mean of its divisors is an integer number (54057003).

Almost surely, 2^429476981 is an apocalyptic number.

It is an amenable number.

429476981 is a deficient number, since it is larger than the sum of its proper divisors (2979043).

429476981 is a wasteful number, since it uses less digits than its factorization.

429476981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511.

The product of its digits is 870912, while the sum is 50.

The square root of 429476981 is about 20723.8264082674. The cubic root of 429476981 is about 754.4780867336.

The spelling of 429476981 in words is "four hundred twenty-nine million, four hundred seventy-six thousand, nine hundred eighty-one".