34782031 has 4 divisors (see below), whose sum is σ = 35904064. Its totient is φ = 33660000.

The previous prime is 34782029. The next prime is 34782043. The reversal of 34782031 is 13028743.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34782031 - 2¹ = 34782029 is a prime.

It is a super-2 number, since 2×34782031² = 2419579360969922, 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 (34782061) 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, 560970 + ... + 561031.

It is an arithmetic number, because the mean of its divisors is an integer number (8976016).

Almost surely, 2^34782031 is an apocalyptic number.

34782031 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

34782031 is the 2638-th centered decagonal number.

34782031 is a deficient number, since it is larger than the sum of its proper divisors (1122033).

34782031 is a wasteful number, since it uses less digits than its factorization.

34782031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122032.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 34782031 is about 5897.6292694607. The cubic root of 34782031 is about 326.4261774098.

The spelling of 34782031 in words is "thirty-four million, seven hundred eighty-two thousand, thirty-one".