35957421 has 6 divisors (see below), whose sum is σ = 51938510. Its totient is φ = 23971608.

The previous prime is 35957413. The next prime is 35957429. The reversal of 35957421 is 12475953.

It is an interprime number because it is at equal distance from previous prime (35957413) and next prime (35957429).

It can be written as a sum of positive squares in only one way, i.e., 26409321 + 9548100 = 5139^2 + 3090^2 .

It is not a de Polignac number, because 35957421 - 2³ = 35957413 is a prime.

It is a super-2 number, since 2×35957421² = 2585872249942482, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35957429) 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, 1997626 + ... + 1997643.

Almost surely, 2^35957421 is an apocalyptic number.

It is an amenable number.

35957421 is a deficient number, since it is larger than the sum of its proper divisors (15981089).

35957421 is a wasteful number, since it uses less digits than its factorization.

35957421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3995275 (or 3995272 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 35957421 is about 5996.4507002059. The cubic root of 35957421 is about 330.0624950511.

The spelling of 35957421 in words is "thirty-five million, nine hundred fifty-seven thousand, four hundred twenty-one".