61738269 has 16 divisors (see below), whose sum is σ = 84756672. Its totient is φ = 39955968.

The previous prime is 61738253. The next prime is 61738273. The reversal of 61738269 is 96283716.

It is a happy number.

It is not a de Polignac number, because 61738269 - 2⁴ = 61738253 is a prime.

It is a super-2 number, since 2×61738269² = 7623227718232722, 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 61738269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61738769) 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, 13422 + ... + 17424.

It is an arithmetic number, because the mean of its divisors is an integer number (5297292).

Almost surely, 2^61738269 is an apocalyptic number.

It is an amenable number.

61738269 is a deficient number, since it is larger than the sum of its proper divisors (23018403).

61738269 is a wasteful number, since it uses less digits than its factorization.

61738269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4156.

The product of its digits is 108864, while the sum is 42.

The square root of 61738269 is about 7857.3703616414. The cubic root of 61738269 is about 395.2314383691.

The spelling of 61738269 in words is "sixty-one million, seven hundred thirty-eight thousand, two hundred sixty-nine".