34723854 has 72 divisors (see below), whose sum is σ = 84029400. Its totient is φ = 10354080.

The previous prime is 34723853. The next prime is 34723861. The reversal of 34723854 is 45832743.

It is a happy number.

It is a super-2 number, since 2×34723854² = 2411492073226632, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34723853) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 232972 + ... + 233120.

It is an arithmetic number, because the mean of its divisors is an integer number (1167075).

Almost surely, 2^34723854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34723854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42014700).

34723854 is an abundant number, since it is smaller than the sum of its proper divisors (49305546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34723854 is a wasteful number, since it uses less digits than its factorization.

34723854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 272 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 34723854 is about 5892.6949691970. The cubic root of 34723854 is about 326.2440805726.

Subtracting 34723854 from its reverse (45832743), we obtain a square (11108889 = 3333²).

The spelling of 34723854 in words is "thirty-four million, seven hundred twenty-three thousand, eight hundred fifty-four".