61269969 has 16 divisors (see below), whose sum is σ = 84026624. Its totient is φ = 39690000.

The previous prime is 61269931. The next prime is 61269979. The reversal of 61269969 is 96996216.

It is a happy number.

It is not a de Polignac number, because 61269969 - 2⁷ = 61269841 is a prime.

It is a super-2 number, since 2×61269969² = 7508018202521922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61269979) 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, 26094 + ... + 28344.

It is an arithmetic number, because the mean of its divisors is an integer number (5251664).

Almost surely, 2^61269969 is an apocalyptic number.

It is an amenable number.

61269969 is a deficient number, since it is larger than the sum of its proper divisors (22756655).

61269969 is a wasteful number, since it uses less digits than its factorization.

61269969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508.

The product of its digits is 314928, while the sum is 48.

The square root of 61269969 is about 7827.5135898956. The cubic root of 61269969 is about 394.2295916796.

The spelling of 61269969 in words is "sixty-one million, two hundred sixty-nine thousand, nine hundred sixty-nine".