534697381 has 2 divisors, whose sum is σ = 534697382. Its totient is φ = 534697380.

The previous prime is 534697351. The next prime is 534697463. The reversal of 534697381 is 183796435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 323460225 + 211237156 = 17985^2 + 14534^2 .

It is a cyclic number.

It is not a de Polignac number, because 534697381 - 2¹¹ = 534695333 is a prime.

It is a super-2 number, since 2×534697381² = 571802578496518322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534697321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267348690 + 267348691.

It is an arithmetic number, because the mean of its divisors is an integer number (267348691).

Almost surely, 2^534697381 is an apocalyptic number.

It is an amenable number.

534697381 is a deficient number, since it is larger than the sum of its proper divisors (1).

534697381 is an equidigital number, since it uses as much as digits as its factorization.

534697381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 534697381 is about 23123.5244069757. The cubic root of 534697381 is about 811.6510452876.

The spelling of 534697381 in words is "five hundred thirty-four million, six hundred ninety-seven thousand, three hundred eighty-one".