35561994 has 48 divisors (see below), whose sum is σ = 81585792. Its totient is φ = 10293504.

The previous prime is 35561971. The next prime is 35562017. The reversal of 35561994 is 49916553.

It is an interprime number because it is at equal distance from previous prime (35561971) and next prime (35562017).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16207 + ... + 18269.

It is an arithmetic number, because the mean of its divisors is an integer number (1699704).

Almost surely, 2^35561994 is an apocalyptic number.

35561994 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 35561994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40792896).

35561994 is an abundant number, since it is smaller than the sum of its proper divisors (46023798).

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

35561994 is a wasteful number, since it uses less digits than its factorization.

35561994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111 (or 2098 counting only the distinct ones).

The product of its digits is 145800, while the sum is 42.

The square root of 35561994 is about 5963.3877955404. The cubic root of 35561994 is about 328.8481235913.

The spelling of 35561994 in words is "thirty-five million, five hundred sixty-one thousand, nine hundred ninety-four".