35881213 has 4 divisors (see below), whose sum is σ = 36013888. Its totient is φ = 35748540.

The previous prime is 35881211. The next prime is 35881217. The reversal of 35881213 is 31218853.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31218853 = 179 ⋅174407.

It is a cyclic number.

It is not a de Polignac number, because 35881213 - 2¹ = 35881211 is a prime.

It is a super-2 number, since 2×35881213² = 2574922892702738, 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 (35881211) 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, 65931 + ... + 66472.

It is an arithmetic number, because the mean of its divisors is an integer number (9003472).

Almost surely, 2^35881213 is an apocalyptic number.

It is an amenable number.

35881213 is a deficient number, since it is larger than the sum of its proper divisors (132675).

35881213 is a wasteful number, since it uses less digits than its factorization.

35881213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132674.

The product of its digits is 5760, while the sum is 31.

The square root of 35881213 is about 5990.0929041209. The cubic root of 35881213 is about 329.8291524579.

The spelling of 35881213 in words is "thirty-five million, eight hundred eighty-one thousand, two hundred thirteen".