61028590 has 16 divisors (see below), whose sum is σ = 125544672. Its totient is φ = 20924064.

The previous prime is 61028579. The next prime is 61028603. The reversal of 61028590 is 9582016.

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, 435849 + ... + 435988.

It is an arithmetic number, because the mean of its divisors is an integer number (7846542).

Almost surely, 2^61028590 is an apocalyptic number.

61028590 is an abundant number, since it is smaller than the sum of its proper divisors (64516082).

61028590 is a wasteful number, since it uses less digits than its factorization.

61028590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871851.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 61028590 is about 7812.0797486969. The cubic root of 61028590 is about 393.7112084065.

The spelling of 61028590 in words is "sixty-one million, twenty-eight thousand, five hundred ninety".