61387416 has 32 divisors (see below), whose sum is σ = 170521200. Its totient is φ = 20462400.

The previous prime is 61387399. The next prime is 61387429. The reversal of 61387416 is 61478316.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 141885 + ... + 142316.

Almost surely, 2^61387416 is an apocalyptic number.

It is an amenable number.

61387416 is an abundant number, since it is smaller than the sum of its proper divisors (109133784).

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

61387416 is a wasteful number, since it uses less digits than its factorization.

61387416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284216 (or 284206 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 61387416 is about 7835.0121888865. The cubic root of 61387416 is about 394.4813274569.

The spelling of 61387416 in words is "sixty-one million, three hundred eighty-seven thousand, four hundred sixteen".