19297965 has 32 divisors (see below), whose sum is σ = 32587776. Its totient is φ = 9737280.

The previous prime is 19297931. The next prime is 19297973. The reversal of 19297965 is 56979291.

It is not a de Polignac number, because 19297965 - 2¹⁰ = 19296941 is a prime.

It is a super-2 number, since 2×19297965² = 744822906282450, which contains 22 as substring.

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, 21414 + ... + 22296.

It is an arithmetic number, because the mean of its divisors is an integer number (1018368).

Almost surely, 2^19297965 is an apocalyptic number.

19297965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19297965 is a deficient number, since it is larger than the sum of its proper divisors (13289811).

19297965 is a wasteful number, since it uses less digits than its factorization.

19297965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its digits is 306180, while the sum is 48.

The square root of 19297965 is about 4392.9449120152. The cubic root of 19297965 is about 268.2278312490.

The spelling of 19297965 in words is "nineteen million, two hundred ninety-seven thousand, nine hundred sixty-five".