61926890 has 32 divisors (see below), whose sum is σ = 121392000. Its totient is φ = 22655808.

The previous prime is 61926883. The next prime is 61926899. The reversal of 61926890 is 9862916.

61926890 = 199² + 200² + ... + 578².

It is not an unprimeable number, because it can be changed into a prime (61926899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110 + ... + 11129.

It is an arithmetic number, because the mean of its divisors is an integer number (3793500).

Almost surely, 2^61926890 is an apocalyptic number.

61926890 is a deficient number, since it is larger than the sum of its proper divisors (59465110).

61926890 is a wasteful number, since it uses less digits than its factorization.

61926890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11294.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 61926890 is about 7869.3640149633. The cubic root of 61926890 is about 395.6335291036.

The spelling of 61926890 in words is "sixty-one million, nine hundred twenty-six thousand, eight hundred ninety".