61843494 has 16 divisors (see below), whose sum is σ = 124035840. Its totient is φ = 20556360.

The previous prime is 61843489. The next prime is 61843513. The reversal of 61843494 is 49434816.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12202 + ... + 16509.

It is an arithmetic number, because the mean of its divisors is an integer number (7752240).

Almost surely, 2^61843494 is an apocalyptic number.

61843494 is an abundant number, since it is smaller than the sum of its proper divisors (62192346).

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

61843494 is a wasteful number, since it uses less digits than its factorization.

61843494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29075.

The product of its digits is 82944, while the sum is 39.

The square root of 61843494 is about 7864.0634534571. The cubic root of 61843494 is about 395.4558514376.

The spelling of 61843494 in words is "sixty-one million, eight hundred forty-three thousand, four hundred ninety-four".