33947090 has 32 divisors (see below), whose sum is σ = 62657280. Its totient is φ = 13238784.

The previous prime is 33947087. The next prime is 33947099. The reversal of 33947090 is 9074933.

It is a self number, because there is not a number n which added to its sum of digits gives 33947090.

It is not an unprimeable number, because it can be changed into a prime (33947099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76409 + ... + 76851.

It is an arithmetic number, because the mean of its divisors is an integer number (1958040).

Almost surely, 2^33947090 is an apocalyptic number.

33947090 is a deficient number, since it is larger than the sum of its proper divisors (28710190).

33947090 is a wasteful number, since it uses less digits than its factorization.

33947090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 33947090 is about 5826.4131333094. The cubic root of 33947090 is about 323.7930459601.

The spelling of 33947090 in words is "thirty-three million, nine hundred forty-seven thousand, ninety".