61967394 has 12 divisors (see below), whose sum is σ = 134262726. Its totient is φ = 20655792.

The previous prime is 61967387. The next prime is 61967443. The reversal of 61967394 is 49376916.

It can be written as a sum of positive squares in only one way, i.e., 61826769 + 140625 = 7863^2 + 375^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1721299 + ... + 1721334.

Almost surely, 2^61967394 is an apocalyptic number.

61967394 is an abundant number, since it is smaller than the sum of its proper divisors (72295332).

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

61967394 is a wasteful number, since it uses less digits than its factorization.

61967394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442641 (or 3442638 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 61967394 is about 7871.9371186513. The cubic root of 61967394 is about 395.7197665362.

The spelling of 61967394 in words is "sixty-one million, nine hundred sixty-seven thousand, three hundred ninety-four".