61279465 has 48 divisors (see below), whose sum is σ = 87796800. Its totient is φ = 40690944.

The previous prime is 61279457. The next prime is 61279489. The reversal of 61279465 is 56497216.

It is not a de Polignac number, because 61279465 - 2³ = 61279457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1038606 + ... + 1038664.

It is an arithmetic number, because the mean of its divisors is an integer number (1829100).

Almost surely, 2^61279465 is an apocalyptic number.

61279465 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

61279465 is a deficient number, since it is larger than the sum of its proper divisors (26517335).

61279465 is a wasteful number, since it uses less digits than its factorization.

61279465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 125 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 61279465 is about 7828.1201447091. The cubic root of 61279465 is about 394.2499573436.

The spelling of 61279465 in words is "sixty-one million, two hundred seventy-nine thousand, four hundred sixty-five".