61217374 has 24 divisors (see below), whose sum is σ = 100782144. Its totient is φ = 27763200.

The previous prime is 61217371. The next prime is 61217381. The reversal of 61217374 is 47371216.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61217371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253894 + ... + 254134.

It is an arithmetic number, because the mean of its divisors is an integer number (4199256).

Almost surely, 2^61217374 is an apocalyptic number.

61217374 is a deficient number, since it is larger than the sum of its proper divisors (39564770).

61217374 is a wasteful number, since it uses less digits than its factorization.

61217374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 291 counting only the distinct ones).

The product of its digits is 7056, while the sum is 31.

The square root of 61217374 is about 7824.1532449205. The cubic root of 61217374 is about 394.1167553180.

The spelling of 61217374 in words is "sixty-one million, two hundred seventeen thousand, three hundred seventy-four".