61654364 has 24 divisors (see below), whose sum is σ = 109930128. Its totient is φ = 30251520.

The previous prime is 61654361. The next prime is 61654409. The reversal of 61654364 is 46345616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61654361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50222 + ... + 51434.

It is an arithmetic number, because the mean of its divisors is an integer number (4580422).

Almost surely, 2^61654364 is an apocalyptic number.

It is an amenable number.

61654364 is a deficient number, since it is larger than the sum of its proper divisors (48275764).

61654364 is a wasteful number, since it uses less digits than its factorization.

61654364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445 (or 1443 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

The square root of 61654364 is about 7852.0292918455. The cubic root of 61654364 is about 395.0523116105.

The spelling of 61654364 in words is "sixty-one million, six hundred fifty-four thousand, three hundred sixty-four".