104990649 has 16 divisors (see below), whose sum is σ = 144019392. Its totient is φ = 67995648.

The previous prime is 104990617. The next prime is 104990651. The reversal of 104990649 is 946099401.

It is not a de Polignac number, because 104990649 - 2⁵ = 104990617 is a prime.

It is a super-2 number, since 2×104990649² = 22046072754882402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 104990649.

It is not an unprimeable number, because it can be changed into a prime (104990449) 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, 22789 + ... + 27005.

It is an arithmetic number, because the mean of its divisors is an integer number (9001212).

Almost surely, 2^104990649 is an apocalyptic number.

It is an amenable number.

104990649 is a deficient number, since it is larger than the sum of its proper divisors (39028743).

104990649 is a wasteful number, since it uses less digits than its factorization.

104990649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4456.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 104990649 is about 10246.4944737212. The cubic root of 104990649 is about 471.7553928043.

The spelling of 104990649 in words is "one hundred four million, nine hundred ninety thousand, six hundred forty-nine".