61464077 has 4 divisors (see below), whose sum is σ = 61617756. Its totient is φ = 61310400.

The previous prime is 61464049. The next prime is 61464083. The reversal of 61464077 is 77046416.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51566761 + 9897316 = 7181^2 + 3146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61464077 is a prime.

It is a super-2 number, since 2×61464077² = 7555665522923858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61469077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76238 + ... + 77039.

It is an arithmetic number, because the mean of its divisors is an integer number (15404439).

Almost surely, 2^61464077 is an apocalyptic number.

It is an amenable number.

61464077 is a deficient number, since it is larger than the sum of its proper divisors (153679).

61464077 is a wasteful number, since it uses less digits than its factorization.

61464077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153678.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 61464077 is about 7839.9028692963. The cubic root of 61464077 is about 394.6454694218.

The spelling of 61464077 in words is "sixty-one million, four hundred sixty-four thousand, seventy-seven".