616537470 has 64 divisors (see below), whose sum is σ = 1569632256. Its totient is φ = 154452480.

The previous prime is 616537469. The next prime is 616537489. The reversal of 616537470 is 74735616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 463947 + ... + 465273.

It is an arithmetic number, because the mean of its divisors is an integer number (24525504).

Almost surely, 2^616537470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616537470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (784816128).

616537470 is an abundant number, since it is smaller than the sum of its proper divisors (953094786).

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

616537470 is a wasteful number, since it uses less digits than its factorization.

616537470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 616537470 is about 24830.1725729001. The cubic root of 616537470 is about 851.1115653536. Note that the first 3 decimals are identical.

The spelling of 616537470 in words is "six hundred sixteen million, five hundred thirty-seven thousand, four hundred seventy".